A written dispute letter is still the tool that protects U.S. credit card billing-error rights. A phone call can flag a charge. It often does not start the federal process the way a letter does.
Already tried to cancel, and the same merchant billed you again? Put the dates, amounts, and account number on paper. Send that letter to the right address.
This page is for U.S. consumers who need sample letters for a bank, a card issuer, or a merchant. It is practical information, not a substitute for advice from a licensed attorney.
Credit card, debit, and merchant letters are not the same
Thing is, one template does not cover every payment rail.
A credit card charge that looks wrong may qualify as a billing error under the Fair Credit Billing Act. You generally need a written notice that reaches the issuer within 60 days after the issuer sent the statement that first showed the error. Mail it to the billing-inquiries address printed on that statement.
The letter should give your name, the account, the dollar amount you dispute, and a short explanation of why it is wrong.
Do not use the payment-only address.
Debit cards and ACH withdrawals fall under the Electronic Fund Transfer Act, and your bank follows Regulation E on preauthorized transfers. You can usually stop a future preauthorized debit by notifying the bank at least three business days before the next scheduled date. Some banks take that order by phone.
They may still require a written confirmation. If they asked for writing, that Regulation E section gives them 14 days to receive it. After that, they may honor later debits.
A letter to the merchant asks them to cancel and refund. It does not replace notice to your bank or issuer. The FTC page on free trials, auto-renewals, and negative option subscriptions says to dispute the charge with your card company if the seller will not refund you.
Do not paste the credit card 60-day rule onto every recurring debit, because ACH stop-payment timing and a merchant's refund policy run on different clocks. Match the letter to the account that was hit.
Sample letters you can copy
Start with the bank or issuer if the money already left the account. Write the merchant if you can still reach cancellations. Doing both is fine.
Bank or card issuer
Copy this block. Replace every bracket. Keep it on one page.
[Your Name]
[Your Address]
[City, State ZIP]
[Email]
[Phone]
[Date]
[Bank or Card Issuer Name]
Billing Inquiries
[Address on your statement for billing errors or disputes]
Re: Dispute of recurring charge - Account ending [last 4]
Dear Dispute Department:
I am writing to dispute recurring charges posted to the account above.
Date: [MM/DD/YYYY], amount: $[amount], merchant: [name], description: [as shown]
Date: [MM/DD/YYYY], amount: $[amount], merchant: [name], description: [as shown]
Total disputed: $[total].
I did not authorize these recurring payments. [Or: I canceled on [date] by [phone/email/chat], confirmation [number], and charges continued.] Please investigate, reverse the disputed amounts, and stop future payments to this merchant.
I enclose copies of statement pages and [cancellation email / chat transcript]. Please confirm in writing.
Sincerely,
[Signature]
[Printed name]For a credit card, call it a billing error and state the amount. That is the core of the notice.
For a debit or ACH item, say the transfer was unauthorized, or that you are stopping future preauthorized payments. Ask the bank to block the next debit if it has not posted.
Merchant
You still want this on paper even if you already clicked cancel in an app, because chat logs vanish.
[Your Name]
[Your Address]
[City, State ZIP]
[Email]
[Phone]
[Date]
[Merchant Name]
Billing or Cancellations
[Address from your account terms]
Re: Cancel subscription and refund recurring charges - [account or order ID]
I request immediate cancellation of [plan or product] billed to [card or bank last 4].
Charges I dispute:
Date: [MM/DD/YYYY], amount: $[amount]
Date: [MM/DD/YYYY], amount: $[amount]
I [never authorized this plan / canceled on [date] / was not clearly told it would auto-renew]. Please refund $[total], close the account, and confirm that no further charges will post.
Copies of [emails, screenshots, bank lines] are enclosed. If this is not resolved, I will dispute the charges with my financial institution.
Sincerely,
[Signature]
[Printed name]Stay firm. You do not need to apologize for canceling a plan you do not want.
What to include besides the letter
You need more than a polite paragraph.
Include:
- Your name and account number, or the last four digits if that is what the issuer asks for
- Each charge date, amount, and merchant name as printed on the statement
- A short reason: unauthorized, already canceled, duplicate, or wrong amount
- Copies of statement pages and any cancellation proof, never the originals
Turns out the address is where most of these stall. Credit card issuers print a billing-error address on the statement, and a letter that lands in the payment lockbox can miss the 60-day window even if you dropped it at the post office on time, which is a miserable way to learn you used the wrong street.
How to write and mail the letter
- Pull the statement that first showed the charge and mark 60 days out if this is a credit card.
- Choose the bank or issuer letter, the merchant letter, or both.
- Fill every bracket and stay on one page.
- Attach copies of statement pages and cancellation proof.
- Sign and date the letter.
- Mail it to the billing-inquiries or dispute address, and use USPS certified mail with return receipt if you want a delivery record.
- Pay any amount you are not disputing.
- Call the bank for a stop payment the same day if an ACH debit is due within a few days.
Certified mail gives you a delivery record. It does not guarantee a refund.
Send copies with the letter, not the originals, because you will need those originals if this drags on and someone asks you to prove the same charge a second time.
Which path matches your charge
Your payment method decides the clock.
| Path | What the letter can start | Timing that matters |
|---|---|---|
| Credit card billing error | A federal investigation of a listed error. You generally may withhold the disputed amount and keep paying the rest. | Written notice generally must reach the issuer within 60 days after the statement that first showed the error was sent. The issuer generally must acknowledge a qualifying notice within 30 days unless it has already resolved the error, and finish within two billing cycles, not later than 90 days. |
| Debit or ACH | A stop on future preauthorized transfers, or a claim that a transfer was unauthorized. | Stop payment at least three business days before the next scheduled debit. A phone order may need written confirmation within 14 days. |
| Merchant | Cancellation and a refund request under the company's terms. | Set by those terms, not by the FCBA clock. |
Card-network chargebacks are a separate issuer process. Their windows can differ from the 60-day written billing-error notice. Ask which process they opened.
Deadlines people miss
The 60-day credit card window runs from when the statement was sent, not from the day you spotted the line in an app. Open the PDF. Find the statement date.
Stop-payment under Regulation E is measured in business days. Three days is tight if the merchant bills on a Monday.
A stolen card is a different notice. Call the issuer the same day, then follow their unauthorized-use instructions. Do not wait on a slow letter if the card itself is gone.
If nobody responds
File a CFPB complaint when a bank or card issuer is in the mix. Use the FTC fraud report when the merchant looks like a fake renewal or a company you cannot reach.
A regulator complaint is an escalation path, not a trial. For a large balance, a consumer lawyer or legal aid office can tell you whether small claims is worth the filing fee.
To be honest, you may need the merchant letter, the issuer letter, and a regulator complaint in the same stretch of weeks if each office points at the other.
Common follow-up questions
Can I use the app instead of a letter?
Some issuers let you start a dispute online. For a credit card billing error, check the billing-rights notice on your statement before you rely on the app alone. If that insert is vague, mail the letter too.
Does certified mail change the deadline?
No. It only proves delivery. The credit card clock is still about when the written notice arrives.
I authorized the trial. Can I still fight later months?
Cancel in writing. Ask the merchant to refund charges after you canceled, or charges you never agreed would renew. If they refuse, dispute remaining card charges with the issuer. The outcome hangs on the facts, including what you clicked and what notice you got.
Circle the 60-day date on the statement that first showed the charge. Fill the matching template today. Mail it to the billing-inquiries address, and keep the copies.