If your internet service provider charged the wrong amount, delivered unreliable service, or refused to honor a cancellation, start with a short written complaint. State what happened, when it happened, what records support it, and the specific fix you want. These templates cover billing errors, unauthorized add-ons, price increases, slow speeds, outages, installation delays, equipment fees, contract disputes, cancellations, and escalation.

A direct email creates a useful record, but it does not start the Federal Communications Commission's 30-day response period. That period applies after the FCC serves an informal complaint on the provider. The FCC says the provider must respond in writing within 30 days of receiving that complaint and provide the FCC with a copy of the response.

This information is for U.S. consumers. Your service agreement, provider policies, and state law may affect the result. The UK Consumer Rights Act and Ofcom complaint process do not control a U.S. account.

What controls an ISP complaint

Before saying that your provider violated a rule or breached its agreement, identify the document or policy that supports your position:

The FCC's complaint questions and answers describe the informal complaint process. Its Internet complaint issue descriptions can help you select a category.

Gather evidence before you write

A short complaint backed by dated records is usually more useful than a long account of your frustration. Gather the documents that prove the particular issue:

For a speed complaint, test more than once if possible. A wired test directly from the provider's gateway can be more informative than a distant Wi-Fi test. Record whether other devices were using the connection. An advertised "up to" speed is not necessarily a guaranteed speed, so check the plan's written terms before calling the result a contract breach.

Do not send a password, Social Security number, full payment-card number, or other unnecessary personal information. Use the provider's secure account portal for sensitive documents when available.

Decide what you want the provider to do

Match the remedy to the problem and explain how you calculated any requested credit or refund.

Problem Evidence to attach Specific request
Wrong bill Current and prior bills Correct the charge and refund or credit the difference
Unauthorized add-on Bill, order history, and plan terms Remove the service, stop future charges, and refund disputed amounts
Price increase Contract, promotion, notice, and bills Explain the increase, honor the agreed rate if applicable, or explain cancellation options
Slow speeds Plan information and dated tests Investigate the line or equipment, restore service, and consider a credit
Outage Start and end times, ticket number Apply any credit available under the outage policy or contract
Cancellation fee Contract and service records Cancel the account and explain whether the fee can be waived
Equipment charge Return receipt or tracking record Remove the fee and credit charges made after the return

A complaint email does not by itself change the bill's due date or stop a late fee. Ask the provider how it will handle the disputed amount while it reviews the complaint, and consider paying any undisputed balance. If you paid by credit card or another payment method with a separate dispute process, check the issuer's instructions and deadlines too.

Add this account block to your message

Give the provider enough information to find the account without putting sensitive data in an ordinary email:

Name: [Full name]
Service address: [Service address]
Account number: [Last four digits, or full number through a secure portal]
Phone: [Callback number]
Preferred contact method: [Email or phone]

Replace every bracketed item before sending. Use a subject line that identifies the issue, such as "Incorrect equipment fee" or "Service outage credit request," rather than simply "Complaint."

15 ISP complaint email templates

These are starting points, not scripts. Keep the facts accurate, remove anything that does not apply, and attach only the records needed for the request.

1. General ISP complaint

Subject: Request to Resolve [Billing, Speed, Outage, or Other Issue] - Account [Last Four Digits]

Dear [Provider's Support or Complaints Team],

I am writing about [brief description of the problem] on my account.

Account details:
[Paste account block]

The issue began on [date]. The relevant facts are:
- [Fact with date, amount, or ticket number]
- [Fact with date, amount, or ticket number]
- [Effect on my service or billing]

I have attached [list the documents]. Please [specific remedy, such as correct the bill, repair the service, apply a credit, or confirm cancellation].

Please send a written response by [date]. If you need additional information, identify exactly what is missing.

Sincerely,
[Name]

2. Incorrect bill or overcharge

Subject: Billing Error of $[Amount] - Request for Correction and Refund

Dear Billing Team,

I dispute a charge of $[amount] on my bill dated [date] for account [last four digits].

My agreement or prior bill shows [expected price or service]. The bill instead shows [actual charge]. I did not receive or request [service, upgrade, fee, or charge], if applicable.

I have attached the bill, [contract or order confirmation], and [other evidence]. Please provide an itemized explanation, remove the incorrect charge, and issue a refund or account credit of $[amount].

Please also confirm how the disputed amount will be treated while it is under review and whether any late fee or service interruption is expected.

Please respond in writing by [date].

Sincerely,
[Name]

3. Unauthorized add-on or recurring service

Subject: Unauthorized Add-On on Account [Last Four Digits] - Remove and Refund

Dear [Provider] Billing Team,

My bill dated [date] includes [name of add-on or service] at $[amount]. I did not order or authorize this service.

Please remove the add-on, stop all future charges, and refund or credit the $[amount] charged on [date or dates]. If you believe I authorized it, provide the order date, method of consent, and terms shown at the time.

I have attached [bill, account screenshot, and order history]. Please confirm in writing that the add-on has been removed and state the refund amount by [date].

Sincerely,
[Name]

4. Unexpected price increase or expired promotion

Subject: Review Requested for Price Increase - Account [Last Four Digits]

Dear Billing Team,

My monthly charge increased from $[old amount] to $[new amount] on the bill dated [date]. My order confirmation or agreement states [describe the rate and promotional period].

Please identify the reason for the increase, its effective date, the contract section or plan term that permits it, and when notice was sent to me. I have attached the relevant bill, agreement, promotion, and notice.

If the increase was applied in error, restore the agreed rate and credit the difference of $[amount]. If the increase is permitted, provide the cancellation options and any applicable fee in writing.

Please respond by [date].

Sincerely,
[Name]

5. Speeds below the advertised or listed plan speed

Subject: Internet Speeds Below Plan Information - Account [Last Four Digits]

Dear Technical Support Team,

I am receiving download speeds of approximately [actual speed] Mbps and upload speeds of [actual speed] Mbps on my [plan name] service. The order confirmation, plan page, or Broadband Consumer Label lists [advertised or typical speed information].

The attached tests were taken on [dates and times]. I used [wired connection or Wi-Fi], on [device], with [other household use or conditions]. I understand that Wi-Fi and device limits can affect results, so please test the line and equipment as well.

Please investigate the connection, modem, signal, and any other network issue. I request a written explanation, a repair plan, and a credit for the affected period if one is available under my agreement or your policy.

Please respond by [date].

Sincerely,
[Name]

6. Frequent disconnections or high latency

Subject: Repeated Disconnections and Latency - Request for Technical Review

Dear Technical Support Team,

My service has repeatedly disconnected or experienced high latency since [date]. The incidents occurred at [list dates and times], and each lasted approximately [duration].

The problem affects [video calls, work, school, gaming, or other use]. My previous support ticket numbers are [numbers]. I have attached connection logs, speed tests, and screenshots.

Please run a line and equipment review, explain the likely cause, and provide a repair appointment or other action plan. If the problem cannot be fixed by [date], explain the available plan, credit, or cancellation options.

Please confirm the new ticket number and respond in writing by [date].

Sincerely,
[Name]

7. Data-cap or overage charge dispute

Subject: Review of Data Usage and Overage Charge - Account [Last Four Digits]

Dear Billing Team,

My bill dated [date] includes a data overage charge of $[amount]. It states that I used [amount of data], while my plan information shows [data allowance or stated terms].

Please provide the usage records and calculation supporting this charge, identify the date and method by which the applicable data terms were disclosed, and explain whether any courtesy notice was sent before the fee was applied.

If the charge is inconsistent with my plan or was calculated incorrectly, remove it and credit $[amount]. Please also tell me how to monitor or change the applicable data setting going forward.

I have attached [plan terms, bill, usage screenshot, and notices]. Please respond by [date].

Sincerely,
[Name]

8. Credit for a single outage

Subject: Service Outage from [Start] to [End] - Request for Account Credit

Dear [Provider] Support Team,

My internet service was completely unavailable from approximately [date and time] until [date and time], a total of about [hours]. I reported the outage under ticket [number] and followed the troubleshooting steps provided.

The service was restored at [time]. I have attached the outage alert, ticket record, and other supporting evidence.

Please apply the credit available under my service agreement or outage policy and explain the calculation. If no credit applies, identify the relevant policy or contract term.

Please confirm the amount and the billing period in which it will appear by [date].

Sincerely,
[Name]

9. Repeated outages and request for a lasting fix

Subject: Repeated Outages Since [Date] - Repair Plan and Credit Requested

Dear [Provider] Escalations Team,

My service has failed on the following occasions:
- [Date and duration] - ticket [number]
- [Date and duration] - ticket [number]
- [Date and duration] - ticket [number]

The repeated failures have affected [brief description]. I have attached my outage log, provider notifications, and prior support records.

Please provide the cause of the problem, the steps and date for a lasting repair, and the account credit available for the documented downtime. If the service cannot be made reliable, explain my options for changing or ending the plan and whether a fee waiver is available.

Please send a written plan by [date].

Sincerely,
[Name]

10. Missed installation or activation date

Subject: Missed Installation Date of [Date] - New Appointment Requested

Dear Installation Team,

My service was scheduled to be installed or activated on [date] during [appointment window]. No technician arrived, or the service was not activated. My order number is [number], and my previous contact or ticket number is [number].

I have attached the order confirmation and appointment notice. Please provide the earliest confirmed installation date, explain the delay, and remove or credit any installation charge that was applied incorrectly.

If you cannot provide service by [date], explain whether I can cancel the order and whether any fee would apply.

Please respond in writing by [date].

Sincerely,
[Name]

11. Incorrect modem, router, or equipment fee

Subject: Incorrect Equipment Charge - Account [Last Four Digits]

Dear Billing Team,

My bill dated [date] includes a $[amount] charge for [equipment or unreturned-device fee]. I [returned the equipment on date, never received the equipment, or use my own approved equipment].

The device was shipped or returned through [carrier] under tracking number [number]. I have attached the receipt, tracking record, and bill.

Please investigate the equipment record, remove the incorrect charge, and credit any amount billed after [relevant date]. If you believe the charge is valid, provide the device record, return terms, and calculation.

Please confirm the correction by [date].

Sincerely,
[Name]

12. Early termination fee after service problems

Subject: Cancellation and Review of Early Termination Fee - Account [Last Four Digits]

Dear Retention or Escalations Team,

I am requesting cancellation of my service because [describe the documented service problem]. The issue occurred on [dates], and I previously contacted you under tickets [numbers].

I am asking you to waive the early termination fee because the service has not met the terms or performance represented to me. I have attached the agreement, service records, test results, and prior correspondence.

Please confirm the cancellation date, final balance, equipment-return instructions, and whether the fee will be waived. If you deny the waiver, identify the contract section, fee calculation, and review process.

Please respond in writing by [date].

Sincerely,
[Name]

13. Cancellation, final bill, and refund request

Subject: Written Cancellation Request Effective [Date] - Account [Last Four Digits]

Dear [Provider] Cancellation Team,

Please treat this message as my request to cancel [service and plan] effective [date], subject to any cancellation method required by my agreement. Tell me promptly if I must complete an additional step through your portal or by phone.

Please confirm in writing:
- The cancellation date and last day of service
- That recurring billing will stop
- The final amount due or refund owed
- Equipment to return, the deadline, and the return method
- Any applicable cancellation fee and its calculation

I request a refund or credit of $[amount] for [specific overpayment or unused period], if supported by my bill and agreement. Please send confirmation and a final statement by [date].

Sincerely,
[Name]

14. Unresolved support ticket or supervisor escalation

Subject: Escalation of Unresolved Ticket [Number] - Response Requested

Dear Customer Relations or Escalations Team,

I am escalating ticket [number], opened on [date], concerning [short description]. I contacted [department or channel] on [dates], but the issue remains unresolved.

The promised action was [description]. The current problem is [description]. I have attached the prior correspondence and supporting documents so the matter can be reviewed without restarting the process.

Please assign this to a supervisor or specialist, confirm the case owner, and provide a written action plan. My requested resolution is [specific fix, credit, refund, or cancellation].

Please respond by [date]. If you cannot provide that resolution, explain why and identify the next available review route.

Sincerely,
[Name]

15. Notice before filing an FCC complaint

Subject: Final Request Before FCC Complaint - Account [Last Four Digits]

Dear [Provider] Complaints Team,

I am making one final written request to resolve [issue]. I first contacted you on [dates] under tickets [numbers]. The issue remains unresolved because [brief factual explanation].

My requested resolution is [specific remedy]. The relevant records are attached, including [list key evidence].

If I do not receive a meaningful written response by [date], I plan to submit an informal complaint through the FCC Consumer Complaint Center under [billing, internet speed, equipment, or another applicable category]. I understand that this email is not an FCC filing. If the FCC serves a complaint on you, the FCC says you must respond in writing within 30 days of receiving it.

I would prefer to resolve the matter directly. Please confirm your position and next step by [date].

Sincerely,
[Name]

How to send the complaint

  1. Use the right provider channel. Send the message to the billing, retention, executive-relations, or complaints address listed by the provider. Use a secure account portal for account documents when possible.
  2. Use one subject line per issue. Related billing charges can go together, but don't bury a cancellation request inside a speed complaint.
  3. Attach readable evidence. Name files by date, such as 2026-05-14-bill.pdf or speed-tests-May.pdf.
  4. Keep the original message. Save the sent email, attachments, delivery confirmation, and any automatic case number.
  5. Set a reasonable requested date. Seven days may be appropriate for a simple billing correction; a technical investigation may need longer. The date in your email is a request, not automatically a legal deadline.
  6. Follow up once. Reply to the original message, quote the ticket number, and state what remains unresolved.
  7. Protect the account. Do not disclose login credentials or let a representative close the case without written confirmation.

If the provider responds by phone, send a brief recap afterward:

This confirms our call on [date]. You said [summary]. Please correct me if that is inaccurate.

A written recap gives you a record of any promised action.

When to escalate to the FCC or FTC

FCC complaints

Consider the FCC's Consumer Complaint Center after giving the provider a reasonable opportunity to fix a documented problem, particularly one involving billing, advertised rates, speeds, latency, availability, or equipment. Include:

The FCC serves an informal complaint on the provider. According to the FCC's complaint guidance, the provider must respond in writing within 30 days of receiving the complaint and provide the FCC with a copy of that response.

That requirement does not mean the provider must approve your requested refund or credit. State the outcome you want and ask the provider to explain any denial. Formal FCC complaints are a separate process, so do not assume the informal 30-day procedure applies to every filing.

FTC reports

Use the FTC's consumer advice resources for information about suspected deceptive business practices or other consumer-protection concerns. The FTC's Bureau of Consumer Protection accepts reports about businesses that do not make good on promises and uses reports to support enforcement work.

An FTC report does not replace a request for a billing correction or service remedy from your ISP. Keep your provider correspondence and account records if you report the conduct elsewhere.

State consumer agencies

Your state's attorney general, consumer-protection office, or public utility regulator may offer another complaint route. Their authority differs, and some agencies do not handle broadband disputes. Use the official state website to check before submitting your records.

Claims to qualify before you make them

Several common statements are too broad unless your agreement or evidence supports them:

Avoid citing a law simply to make the message sound stronger. A precise reference to your plan, bill, service record, or provider policy is usually more persuasive than a legal citation that does not apply.

Common mistakes to avoid

Frequently asked questions

Does emailing my ISP start the FCC 30-day response period?

No. The 30-day requirement applies after the FCC serves an informal complaint on the provider. Your direct email should still request a response by a reasonable date and preserve a record of your efforts.

Can I get a credit for an internet outage?

You can request one, but the result depends on the provider's outage policy, your service agreement, and any applicable law. Include exact start and end times, ticket numbers, and the amount you believe should be credited.

Can I cancel without paying an early termination fee because the service was poor?

Not automatically. Review the agreement and document the failures and repair attempts. Ask the provider to waive the fee. If it refuses, request the contract section and calculation supporting the charge.

What evidence is best for a slow-speed complaint?

Use the plan's written speed information and several dated tests. When practical, test through Ethernet directly from the provider's gateway, record the device and time, and note whether other users were consuming bandwidth.

What should I do if the provider ignores my email?

Send one follow-up that includes the original date, ticket number, requested remedy, and a new response date. If the issue fits an FCC category, consider filing through the FCC complaint process with the full record attached.

This is general consumer information, not legal advice. Keep your agreement, bills, evidence, and written responses together until the account is corrected, closed, or fully resolved.