To get a refund for a double payment, contact the merchant first and ask them to reverse the duplicate; if they won’t, dispute the charge with your card issuer or bank within 60 days of the statement date. Credit card duplicates fall under the Fair Credit Billing Act, and debit card or ACH duplicates fall under the Electronic Fund Transfer Act and Regulation E. Both laws force the institution to investigate and correct genuine errors, but the mechanics and timelines differ.
Start With the Merchant
Most double charges get resolved here, not through a formal dispute. Call or email the merchant’s billing or customer service line with your receipt or order confirmation, the transaction dates, and the amounts as they appear on your bank statement. Legitimate businesses can usually reverse an accidental duplicate within a few business days once they verify it in their system.
Give the merchant a reasonable window — a few business days — but not indefinite. If they confirm the duplicate but delay the refund, or if they dispute that a duplicate occurred, move to your bank or card issuer before the 60-day clock runs out. The statutory deadline starts on the statement date whether the merchant is cooperating or not.
Disputing a Duplicate Credit Card Charge
The Fair Credit Billing Act covers credit cards, charge cards, and home equity lines of credit. A duplicate charge is a “billing error” under the statute because the second charge is for an amount you never authorized.1Office of the Law Revision Counsel. 15 USC 1666 Correction of Billing Errors
Send written notice to your card issuer within 60 days of the statement showing the duplicate. Include your name and account number, identify the charge you’re disputing, and explain that it’s a duplicate of an earlier authorized transaction. Send the notice to the billing inquiries address on your statement, not the payment address — that’s where the law requires disputes to go.2Office of the Law Revision Counsel. 15 USC 1666 Correction of Billing Errors Most issuers also accept disputes through their online portal or app, which works in practice, but a letter sent by certified mail creates the cleanest paper trail if the matter escalates.
Once the issuer receives your notice, it has 30 days to acknowledge the dispute and two complete billing cycles — capped at 90 days total — to resolve it.2Office of the Law Revision Counsel. 15 USC 1666 Correction of Billing Errors While the investigation is open, you don’t owe the disputed amount, the issuer can’t try to collect it, and it can’t report the amount as delinquent.3Consumer Financial Protection Bureau. 12 CFR 1026.13 Billing Error Resolution If the issuer confirms the duplicate, it must correct your account and credit back any finance charges that accrued on the wrong amount.
Disputing a Duplicate Debit Card or ACH Charge
When the duplicate hits a debit card or comes out through an ACH withdrawal, the Electronic Fund Transfer Act applies through Regulation E. You have the same 60 days from the statement date to notify your bank.4Office of the Law Revision Counsel. 15 USC 1693f Error Resolution
Regulation E lets you report the error orally or in writing, unlike the FCBA’s written requirement. Your bank can ask you to follow up an oral report with written confirmation within 10 business days. Calling is usually fastest, and most banks also have an online dispute portal where you can flag the transaction and upload supporting documents.
The bank has 10 business days from your notice to investigate and report results. If it needs longer, it can extend the investigation to 45 days — but only if it provisionally credits your account for the disputed amount within those first 10 business days.5Consumer Financial Protection Bureau. 12 CFR 1005.11 Procedures for Resolving Errors You get full use of those provisionally credited funds while the investigation continues.4Office of the Law Revision Counsel. 15 USC 1693f Error Resolution For an out-of-pocket debit card duplicate, that provisional credit is often the most important part of the process, because it puts the money back into your account long before the bank finishes its review.
Documentation to Gather Before You Call
Strong documentation is what turns a dispute into a few-day resolution instead of a weeks-long back-and-forth. Pull these together before your first call:
- The transaction IDs for both charges, from your online banking portal or statement. Two different transaction IDs for the same amount to the same merchant are your strongest single piece of evidence.
- The exact dates and times both charges were authorized. Two authorizations seconds or minutes apart point straight to a processing error.
- The merchant name exactly as it appears on your statement, which sometimes differs from the business name you’d recognize.
- Your order confirmation or receipt, showing you placed one order. If the merchant’s system sent two confirmation emails with the same order details, save both.
- Screenshots of the duplicate entries in your banking portal, captured before you file. Banks occasionally reformat or merge transaction records during an investigation.
Representatives handle dozens of disputes a day, and the easier you make it for them to verify the error, the faster the reversal moves.
If Your Dispute Is Denied
Straightforward duplicate charges rarely get denied when the documentation is solid, but it happens. File a complaint with the Consumer Financial Protection Bureau, which oversees both the FCBA and Regulation E. Small claims court is also open to you; filing fees vary by jurisdiction, typically from under $100 to a few hundred dollars depending on the amount at stake.
The legal principle underneath any of these routes is unjust enrichment. Once a merchant receives more than the agreed price, keeping the excess is legally unjustifiable, because they gained money at your expense through a mistake and no contract entitles them to it. If a merchant refuses to return the duplicate after you’ve identified the error and asked for a refund, that refusal can support a claim for conversion, the civil equivalent of keeping property that belongs to someone else. Statutes of limitations for these claims vary by state and generally run from two to six years, so waiting a few weeks for the bank process to play out doesn’t cost you the option.
If You Miss the 60-Day Window
Both statutes tie the 60-day window to the statement date, not the transaction date. Missing it doesn’t kill your options, but it changes them.
For credit cards, your issuer is no longer legally required to follow the billing error resolution procedures. You lose the right to withhold payment on the disputed amount and the protection against collection activity during the investigation. Many issuers will still investigate voluntarily, and card networks like Visa allow cardholders up to 120 days from the transaction date to initiate a chargeback through the network. That’s the issuer’s or network’s policy, though, not your statutory right.
For debit cards and ACH transfers, the stakes of waiting can be higher. Under Regulation E, if you fail to report an error within 60 days and further unauthorized transfers occur after that window closes, you may be liable for those later losses up to the full amount the bank can show it would have prevented had you reported on time.6Consumer Financial Protection Bureau. 12 CFR 1005.6 Liability of Consumer for Unauthorized Transfers For a single duplicate charge that already posted, you can still ask the bank to correct it, but the bank has far more discretion to say no.
Check your statements or transaction alerts regularly. The clock starts whether you look or not.