Start with the business and make your request specific. A useful complaint has a short timeline, supporting records, and a clear remedy. If the business doesn't respond, escalate through the route that matches the problem: your card issuer, a government agency, an ombudsman, or small-claims court.

There's no single U.S. complaint form or deadline. A store's return policy, your contract, payment rules, and state or federal law may all affect the outcome. Use the process below as practical help for U.S. consumers, not legal advice.

Quick route for common complaints

1. Check the policy and any deadline first

Before writing, find the receipt, contract, warranty, return policy, billing statement, or account terms. Look for:

• Return or exchange windows. Many stores use periods such as 30 or 90 days, but the actual policy controls unless a law or contract provides otherwise.
• Warranty claim instructions and required proof of purchase.
• Notice requirements for billing errors, unauthorized transactions, cancellations, or lease violations.
• Arbitration, mediation, or complaint procedures in the contract.
• A regulator, ombudsman, or marketplace deadline.

Don't assume that contacting customer service extends a deadline. A pending complaint to a business or government agency also may not pause a statute of limitations or a payment-dispute window. If a deadline could affect your money or legal rights, verify it with the relevant agency, court, contract, or a licensed attorney.

2. Gather evidence and build a timeline

Keep the original documents and send copies. Your file should normally include:

• Receipt, invoice, order number, account number, or contract
• Dates, prices, taxes, fees, and the amount you're requesting
• Photos or videos of a defect, damage, condition, or meter reading
• Warranty, return-policy, advertising, or service-promise language
• Emails, chat transcripts, text messages, and screenshots
• Names of representatives, call dates, case numbers, and promised follow-up dates
• A simple calculation of your loss

Use a timeline like this:

Save online forms and chats before closing the page. The Federal Trade Commission's guidance on solving problems with a business specifically recommends keeping notes and copies of what you submit.

Redact unnecessary personal information. Don't send your password, full Social Security number, or complete bank details in an ordinary complaint. If you're considering recording a call, check your state's consent rules first; written notes and a follow-up email are safer in many situations.

3. Contact the business with a clear request

Use the company's official customer-service channel, the contact listed in your contract, or the dispute address on your billing statement. Ask for a supervisor or complaint department if the first representative can't help.

Explain:

1. What you bought or used and when
2. What went wrong
3. What you already did to resolve it
4. The specific result you want
5. When you'd like a written response

"Your service was terrible" gives the business little to investigate. "The $85 cancellation fee was charged after I received written confirmation that the subscription was canceled" identifies a transaction, amount, and issue.

A refund, repair, replacement, corrected bill, cancellation, or written explanation is easier to evaluate than "make this right." Base your request on the return policy, warranty, contract, advertisement, or other record when possible.

A phone call can be useful, but follow it with an email:

On [date], I spoke with [name or department] about [issue]. We discussed [summary]. I understand that [promised action] will happen by [date]. Please correct me if this is inaccurate.

Ask for a case or reference number. If the company gives you a response, save it even if you disagree.

4. Send a formal complaint letter

Write a formal complaint when the business ignores your first request, rejects it without addressing the facts, or requires written notice. Keep the letter to about one page. Be firm, polite, and factual.

The FTC's sample customer complaint letter includes the basic details businesses need to investigate a transaction.

Consumer complaint letter template

Subject: Complaint about [product or service] - [order or account number]

Dear [company or complaint department]:

I bought or used [product or service] on [date] for [amount]. The problem is [brief, factual description]. The relevant return policy, warranty, contract term, or promise is [quote or section, if applicable].

I contacted [department, person, or channel] on [dates]. [Briefly describe the response or lack of response.]

I am requesting [specific remedy: refund, repair, replacement, corrected bill, cancellation, or other result]. Please respond in writing by [date]. If you need more information, please identify what is missing.

Attachments: [list receipts, photos, statements, correspondence, and other records]

Sincerely,

[Your name] [Preferred contact information]

Set a reasonable response date, such as 7 to 14 business days, unless the company's policy or an applicable rule provides another period. That date is your requested deadline, not a universal legal deadline.

Send the letter to the correct business name and address. Use email or the company portal when appropriate, and save a screenshot showing what you submitted. For postal mail, consider a delivery method that gives you proof of delivery.

5. Follow up without restarting the argument

Follow up after the date in your letter. Keep the message short:

• Identify the original complaint and case number.
• State whether the promised action occurred.
• Repeat the remedy you're requesting.
• Ask for a final written response and the next escalation contact.

Avoid sending several versions of the same emotional message. A clean record is more useful than a large record. If a representative offers a partial solution, ask what it covers, when it will be completed, and whether accepting it closes the complaint.

Escalation options when the company won't resolve it

Match the route to the problem. Filing everywhere at once can create confusion and won't necessarily improve your position.

BBB and ombudsman complaints

The BBB can be a practical option when a business participates in its complaint process, but it isn't a court or regulator. It can't order a company to pay you. Don't treat a BBB filing as a substitute for a formal card dispute, government complaint, or court filing.

An ombudsman is available only in some sectors and programs. Read its eligibility rules before filing. You may need to show that you first complained to the business and received a final response. Whether a decision is binding depends on the applicable scheme, not on the word "ombudsman" alone.

Financial institutions and payment disputes

For a bank, lender, broker, credit-card company, or other financial institution, begin with the institution's complaint channel. The USAGov guide to bank, credit, and securities complaints explains how to start and where to go if the response is inadequate.

Keep the payment rail clear:

• A credit-card billing dispute follows the issuer's dispute process.
• An ACH or electronic bank transfer may follow different rules.
• Debit, prepaid, wire, remittance, and peer-to-peer payments can have different protections and procedures.
• An unauthorized transaction report isn't the same as dissatisfaction with a product or a merchant's return decision.

Contact the bank or card issuer promptly and follow the instructions on the statement or account portal. A general complaint to the merchant doesn't necessarily satisfy the issuer's notice requirements. If the issue involves a covered financial product and the institution doesn't resolve it, a complaint to the Consumer Financial Protection Bureau may be an option.

Internet and phone service

Give the provider the dates, affected service, account information, outage details, promised speeds or features, and support ticket numbers. Request a specific credit, repair, cancellation, or explanation.

If the provider's process fails, the FCC complaint page may be relevant for U.S. communications services. Follow the portal's instructions and keep your provider's written response. An FCC complaint doesn't replace a billing dispute or preserve every possible legal claim.

Airline complaints

Start with the airline and keep your itinerary, ticket, boarding pass, delay or cancellation messages, baggage records, and receipts for expenses. If the response doesn't resolve an aviation consumer issue, review the U.S. Department of Transportation's complaint process.

Don't rely on a blanket promise that every delay qualifies for compensation. The result can depend on the route, cause of the disruption, ticket terms, and applicable law. State exactly what happened and separate a request for reimbursement from a request for compensation.

Products, online orders, and services

Check the merchant's return, refund, warranty, and marketplace rules before escalating. Include the order number, delivery date, condition of the item, serial number, and photos. If you return something by mail, retain the shipping receipt and tracking record.

A marketplace's buyer-protection deadline may be different from the merchant's return policy. A payment dispute may also have a separate deadline. Use each process only when the facts fit its rules.

Landlord, workplace, and medical complaints

For a landlord dispute, give written notice in the form and manner required by the lease or local law. Keep photos, inspection reports, repair requests, and rent records. Housing-code enforcement, a local tenant agency, or a court may be more appropriate than a consumer regulator. Don't withhold rent or deduct repair costs without checking the rules where the property is located.

A workplace harassment or wage complaint isn't an ordinary customer complaint. Follow the employer's reporting procedure and check the relevant employment agency's deadlines. For a medical concern, request records and use the provider's patient-relations process or the appropriate state licensing board. A licensing complaint may address professional conduct but may not recover money for you. Medical-malpractice deadlines are jurisdiction-specific and can be short.

Demand letters and small-claims court

A demand letter is a final, organized request before a lawsuit or another formal process. It isn't always required, but it can show that you gave the business a fair chance to resolve the dispute.

Include:

• The correct legal name of the business
• A short statement of the facts
• The amount you're claiming and how you calculated it
• The remedy you want
• Copies or a list of supporting records
• A response date
• A reliable delivery method

Before filing in small-claims court, check the court's rules for:

• Maximum claim amount
• Filing fee
• Proper county or venue
• Business name and registered address
• Service of process
• Arbitration clauses or required pre-suit steps
• Evidence and witness requirements

Limits vary by state and sometimes by court. Some states set limits as high as $25,000, but that doesn't mean the limit in your court is the same. Court fees, service costs, and collection procedures vary too. For an example of the records and party-identification issues that can matter, see the Harris County Justice Courts' small-claims FAQ; its procedures are local, not nationwide.

A judgment also doesn't guarantee immediate payment. Confirm the filing and service rules before paying a fee, and don't let a court deadline expire while you continue negotiating.

Mistakes that weaken a complaint

• Vague demands: State the exact refund, repair, replacement, correction, or explanation you want.
• Unsupported accusations: Describe what happened instead of assigning motives you can't prove.
• Missing dates: Include purchase, delivery, contact, cancellation, and promised-response dates.
• Too much personal information: Send only what the business or agency needs.
• Ignoring the payment method: A card, ACH transfer, wire, and peer-to-peer payment may have different procedures.
• Missing the policy window: Return, warranty, billing, and marketplace deadlines can run separately.
• Threatening action you won't take: Say you'll consider escalation only when you understand the next step.
• Assuming an agency guarantees compensation: Regulators collect complaints and may investigate; they don't always recover an individual consumer's money.

Frequently asked questions

Should I contact the company before filing with an agency?

Usually, yes. Start with the company unless there's an urgent safety, fraud, identity-theft, or account-security issue. Keep proof of that contact because some regulators and dispute programs ask what you already did.

How long should I wait for a response?

Use the business's stated timeline if it has one. If it doesn't, give a reasonable date in your written complaint and follow up after that date. Don't wait if a return, billing, warranty, regulator, or court deadline is approaching.

Is a BBB complaint the same as a legal complaint?

No. The BBB is not a government agency and can't require a business to refund you. A BBB filing is separate from a regulator complaint, payment dispute, arbitration, or court case.

Can I dispute a charge just because I'm unhappy with a purchase?

Not necessarily. A payment dispute must fit the issuer's or payment provider's rules. First document the merchant problem, then contact the provider promptly through its official dispute channel. Don't assume a merchant complaint replaces that process.

What should I do if the business ignores my letter?

Save proof that you sent it, send one concise follow-up, and choose the next route based on the transaction. That might be a payment-provider dispute, regulator, ombudsman, demand letter, or small-claims filing. Check the applicable deadline before you escalate.

Final checkpoint

Match the complaint to the rule that controls it: return policy, warranty, card or bank dispute window, contract, lease, or court deadline. Keep proof of submission. If a deadline is near, submit the shortest factual version before the deadline expires, then supply missing records if the process allows.