If a credit card charge is wrong, put the dispute in writing and get it to the issuer before the federal clock runs out. A phone rant will not protect you.
In the United States, the Fair Credit Billing Act and the Regulation Z billing-error rule set the floor for credit cards. The claim has to arrive on time. Your issuer may still file a chargeback against the merchant. That track is bank and card-network procedure, not a replacement for the letter.
Did you already tap Dispute in the banking app? Send the written notice anyway.
Ask the seller in writing for a refund if the store still answers, and keep every email as proof of that contact.
Still protect the federal deadline anyway.
What controls the refund, and what does not
Federal billing-error rules apply to open-end credit such as credit cards. The official list is in 12 CFR 1026.13.
It covers an unauthorized charge, a charge that is not properly identified, goods or services you did not accept or that were not delivered as agreed, a payment that never got credited, and a math error on the statement. Buyer's remorse is not on that list. A store's return window is store policy.
Visa, Mastercard, and American Express each run merchant dispute systems through your bank to press a seller who won't refund you. Their timelines and reason codes are network rules. Those systems are not a substitute for the 60-day written notice under federal law.
Thing is, an in-app dispute button can start a chargeback and still miss the written-notice requirement.
Direct merchant contact is still worth ten minutes. If the seller reverses the charge, the rest of the fight may never start.
Point to the federal billing-error path in a letter after a credit card purchase, even when the merchant has gone silent. Credit cards are the subject here.
| Track | Who decides | What it is good for |
|---|---|---|
| Merchant refund | The seller | Fast reversal when the store still answers |
| Billing-error notice | Your card issuer, under federal rules | Unauthorized charges, non-delivery, billing mistakes |
| Network chargeback | Issuer plus the card network | Pressing a merchant that will not cooperate |
Debit cards, prepaid cards, and PayPal balance payments follow other rulebooks.
The 60-day notice window
Your written notice has to reach the issuer no later than 60 days after the creditor transmitted the first periodic statement that showed the error. The shopping-cart date does not start it.
FTC guidance on disputing charges tells you to write, keep a copy, and get that notice there inside 60 days of the first bill.
"I never got the bill" can fall apart. That happens if you moved and never sent a change of address in writing at least 20 days before the billing period ended. The FTC flags that trap.
Report unauthorized charges the day you see them, call to freeze the card, and then put the same facts in writing because federal law generally limits your loss on unauthorized credit card use to $50 and plenty of issuers promise zero liability as a policy extra, so ask what they actually posted.
Write even if you called. Write even if the app already says dispute received.
Keep paying the undisputed balance on time. The disputed dollars can wait, but you'll still owe the rest of the statement.
File the dispute in this order
You can send this letter yourself, but you do need a paper trail.
Turns out a lot of denials start here: people only called, never wrote, and then the 60 days were gone.
- Open the statement that first listed the charge. Note the statement date, the merchant name, the amount, and the last four digits of the card.
- Message the merchant once, in writing. Ask for a refund and save the thread. If they ignore you, you still have proof you tried.
- Write the issuer at the billing-inquiries address on the statement. That address is often different from the payment P.O. box.
- State that you are giving notice of a billing error. Identify the transaction. Explain the problem in one tight paragraph and say you want the charge removed.
- Enclose copies of your evidence. Don't mail originals.
- Send the package so you can prove delivery. Use certified mail or the issuer's upload if it gives you a confirmation number.
- If you already called, drop the date, the phone number you used, and any case ID into the letter.
Copy this billing-error letter
Use the billing-inquiries address on the statement. Don't dress it up.
[Your name]
[Your address]
[Phone and email]
[Date]
[Issuer name]
[Billing inquiries address from your statement]
Re: Billing error notice, account ending in [last 4], charge of $[amount] on [date] to [merchant]
I am writing to give notice of a billing error under the Fair Credit Billing Act and 12 CFR 1026.13.
The charge of $[amount] posted on [date] to [merchant] is a billing error because [unauthorized / not delivered as agreed / not properly identified / payment not credited / computational error]. [One or two sentences of facts.]
I contacted the merchant on [date] and have not received a refund.
Please acknowledge this notice, investigate, and credit the disputed amount and related finance charges. Copies of my statement and supporting documents are enclosed.
I will continue to pay any undisputed balance.
Sincerely,
[Your name]Match the reason to a real billing-error category. Vague "I am unhappy" language does not help.
Evidence worth attaching
Quality beats a 40-page dump. A short, labeled set is easier for a dispute clerk to use.
- The statement page with the charge marked
- Merchant emails or chat logs, with dates
- Tracking that shows never delivered, or a refused shipment
- Photos or a repair estimate if the item arrived damaged or was not as described
- A police report or issuer fraud affidavit for a true unauthorized charge
- Proof you sent a change of address, if that is part of the story
For non-delivery, tracking is the usual fight. If the merchant later claims a signature, ask your issuer for that proof and compare the name and address.
You've got screenshots in one pile, a shipping email that says one thing, and a merchant reply that says another, and you can't tell which PDF goes first, so put the statement on top, then the merchant thread, then the tracking, and skip near-duplicates that say the same thing three times, because clerks skim.
What the issuer has to do next
Two clocks start once a proper notice lands. Within 30 days the creditor must mail or deliver a written acknowledgment, unless it already finished the investigation. It then has two complete billing cycles to resolve the error, and in any event no later than 90 days after receiving your notice. Those clocks are in the same regulation.
You may withhold the disputed amount and related finance charges while the investigation is open. The issuer is not supposed to report you as delinquent just because you skipped that disputed slice, or try to collect only that disputed amount during that window.
If they find you were right, they correct the account. A no-error finding has to come in writing, and you can request the evidence they used. Pay that amount then, or keep arguing with new documents, but don't ignore a written finding of no error.
Some banks post a temporary credit while they look, which you should treat as reversible until you get a final decision. It's not a promise the merchant lost.
If the dispute is denied
Read the denial. It usually names a reason: late notice, not a billing error, or the merchant produced delivery proof.
You can send a follow-up with new facts. Point to a contradiction like a tracking scan in the wrong zip code. Or a charge for a canceled order.
If the issuer blew the 30-day acknowledgment or the 90-day resolution, say so in writing. The FTC notes that a late acknowledgment is itself a miss.
File with the Consumer Financial Protection Bureau if the bank won't budge; the CFPB routes it to the company. Companies generally respond in about 15 days. You'll get email updates, and you have 60 days to comment on the company's reply.
To be honest, a CFPB complaint is not a courtroom. It is leverage and a paper trail.
For a large unpaid balance, small-claims court is a separate decision under local rules.
Unpaid undisputed balances turn a billing fight into a late-fee mess.
Don't skip payments on the undisputed portion while you escalate. Pull the statement that first showed the charge and mark 60 days from the day it was sent. Get written notice to the billing-inquiries address before that date.