How to Fight a Chargeback: The Merchant’s Step-by-Step Representment Guide

When a chargeback is filed against your business, you have the right to fight it through a process called representment. Many merchants accept chargebacks by default, either because they don’t know they can respond, or they don’t know how. This guide walks through the step-by-step process for building and submitting a strong dispute response.

Step 1: Understand the Chargeback Notification

When a chargeback is filed, your payment processor notifies you with:

• The reason code — the card network code that describes the cardholder’s claim (e.g., Visa 13.1 “Merchandise Not Received”, Visa 10.4 “Other Fraud — Card Absent”)
• The response deadline — typically 10–20 days from notification; this is a hard deadline
• The disputed amount — the transaction value being reversed
• Transaction details — date, card type, last four digits

Read the notification carefully before doing anything else. The reason code determines what evidence you need, evidence that doesn’t address the stated reason rarely wins.

Step 2: Decide Whether to Fight

Not every chargeback is worth fighting. Assess:

• Do you have relevant evidence? If you have no delivery confirmation for a “not received” claim, or no authentication data for a fraud claim, fighting is unlikely to succeed
• Is the transaction value worth the effort? Responding takes staff time; for transactions under ~$50, the cost-benefit may not favor a response
• Was the transaction actually erroneous? If you processed a duplicate charge or the wrong amount, accept the chargeback and fix the underlying issue

If you decide not to fight, no action is required, the chargeback will resolve in the cardholder’s favor when the deadline passes.

Step 3: Gather Your Evidence Package

Your evidence must directly counter the reason code. Build your package based on the dispute type:

For “Merchandise Not Received” (Visa 13.1, MC 4853)

• Carrier tracking confirmation showing delivery to the billing/shipping address
• Signature confirmation (required for high-value disputes)
• Photos of package at delivery (if available from carrier)
• Order confirmation and shipping notification emails sent to the customer

For “Unauthorized Transaction” / Fraud (Visa 10.4, MC 4853)

• 3DS authentication result and ECI code (if 3DS succeeded, liability has already shifted to the issuer — this is your strongest possible evidence)
• AVS match result
• CVV match result
• IP address and device fingerprint matching the cardholder’s prior sessions or geographic location
• Login history if the customer has an account on your store

For “Item Not as Described” (Visa 13.3)

• Screenshots of your product listing, description, and images at the time of purchase
• Evidence the item was delivered as described (photos, specifications)
• Customer service communication showing no complaint was raised before the dispute

For “Credit Not Processed” (Visa 13.6)

• Evidence the refund was processed before the chargeback was filed (refund receipt, processing date)
• If refund is still pending, process it immediately and document the processing date

Step 4: Write the Rebuttal Letter

The rebuttal letter accompanies your evidence package and explains why the chargeback should be reversed. A strong rebuttal:

• Opens with a direct statement of your position — “We are requesting reversal of this chargeback. The merchandise was delivered on [date] to [address] as evidenced by the attached carrier confirmation.”
• Lists each piece of evidence and what it proves — “Exhibit A: Carrier tracking confirmation showing delivery on [date]. Exhibit B: Signed proof of delivery.”
• Addresses the specific reason code claim — don’t include irrelevant information; focus on countering the stated dispute reason
• Uses factual, professional language — avoid emotional language or accusations; the reviewer is looking at hundreds of disputes
• Is concise — one page for the letter, exhibits clearly labeled

For a deeper guide to writing representment responses, see Chargeback Representment: How to Write Winning Dispute Responses.

Step 5: Submit Your Response

Submit through your payment processor’s dispute portal before the deadline. Every processor has a different interface, make sure you know where to find active disputes in your ConvesioPay / WooCommerce dashboard and how to upload your evidence package.

Submit at least 2–3 days before the deadline to allow for processing delays. Late submissions are not accepted regardless of the quality of your evidence.

Step 6: Monitor the Outcome

After submission, the issuing bank reviews your evidence and makes a ruling, typically within 30–60 days. Possible outcomes:

• Merchant wins — the chargeback is reversed; the disputed funds are returned to your account
• Cardholder wins — the chargeback stands; the funds are permanently reversed
• Pre-arbitration — the issuer disagrees with your representment but offers a second opportunity to respond before final ruling

Track win rates by reason code. If you’re losing consistently on a specific reason code, your evidence package for that dispute type likely has a gap.

Step 7: Learn and Iterate

Every chargeback — won or lost — contains information. After each dispute cycle:

• Identify which evidence types were most effective for winning
• Review lost disputes for evidence gaps (what did you not have that would have changed the outcome?)
• Update your documentation and evidence collection process to close those gaps going forward

For the broader system-level approach, see Chargeback Management: Building a System That Protects Your Business.