Chargeback Rebuttal Letter for Merchants

When a customer files an unfair chargeback, the deadline to respond is short and the format matters. Processors and card networks decide on documents, and a tight rebuttal letter that walks through the evidence beats a folder of attachments with no narrative every time.

State what was ordered, what was delivered, and what the evidence shows: signed receipts, delivery confirmation, usage logs, correspondence where the customer acknowledged the purchase. Match your argument to the dispute reason code the processor gave you.

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Sample letter

This is the exact structure your finished letter will follow, with placeholders where your facts go.

[Your Business Name] [Your Street Address] [City, State ZIP] [Date] [Processor / Acquiring Bank], Disputes Department [Recipient's Street Address] [City, State ZIP] RE: Formal Response to Chargeback and Demand for Reversal Dear [Processor / Acquiring Bank], Disputes Department: This letter is a formal demand that you reverse chargeback case #[number] and credit the disputed amount back to my merchant account. It concerns chargeback case #[number], transaction of [date] for $[amount], dispute reason: [reason code]. The relevant facts are straightforward. The customer ordered [product/service] on [date] under terms accepted at checkout. The evidence enclosed shows [e.g. delivery confirmation signed on date, account usage after the dispute date, correspondence in which the customer acknowledged the purchase]. This evidence directly addresses the stated dispute reason. Demand is hereby made that this be completed within 14 days of your receipt of this letter. Please confirm in writing when it is done. The evidence referenced above supports reversal of this chargeback. If it is upheld despite that evidence, I request written findings and will escalate through the card network's arbitration process. This letter is written without waiver of any rights or remedies, all of which are expressly reserved. Sincerely, [Your Business Name]

What to include

The case number, transaction date, amount, and dispute reason
What was purchased and the terms the customer accepted
The evidence, item by item: delivery, usage, communications
Why the evidence defeats the specific dispute reason
A demand for reversal and written findings

Common questions

How fast do I need to respond to a chargeback?

Response windows are typically 7 to 30 days from notification depending on the network and processor, and missing the window forfeits the dispute. Check the deadline in your processor's dashboard and treat it as absolute.

What evidence wins chargebacks?

Evidence tied to the reason code. For item-not-received: tracking with delivery confirmation. For unauthorized: IP logs, account history, prior undisputed purchases. For not-as-described: the listing, the terms, and the customer's own messages.

The customer kept the product and got their money back. Now what?

If the chargeback was upheld, you can pursue the customer directly for the amount, and a formal demand letter is the standard next step. Small claims court handles exactly this pattern.

New to this? What a cease and desist letter is, whether it is legally binding, and how to send it properly.