Amex Reason Code C04: Goods/Services Returned or Refused

What Amex reason code C04 means

C04 covers two linked claims: the Card Member returned the goods, or refused them (at the door, or by refusing a service), and you didn’t issue a credit. It’s common in ecommerce, where returns are routine and the dispute often hinges on whether the return actually reached you and whether it met your policy.

Amex typically starts with an inquiry. Check your returns log before you reply. If the item is sitting in your warehouse unprocessed, the right answer is a refund, not a rebuttal.

Common causes

• Returns received but not matched to the order, so no refund was triggered
• Returns shipped without tracking that never arrived
• Returns sent outside the policy window or in used condition, then refused by you
• Packages marked “refused” by the customer that actually show “delivered”
• Restocking fees or return shipping deductions the Card Member didn’t expect

Evidence that wins a C04 dispute

1. Return status: your returns log showing no return received for this order, or the date and condition it arrived in.
2. Carrier records: the outbound tracking showing delivery (not refusal), and any return tracking showing where it actually went.
3. Return policy and disclosure: window, condition requirements, restocking fees, and proof it was shown at checkout.
4. Why the return didn’t qualify, if you declined it: received after the window, used, or missing parts, with photos.
5. Any credit you did issue: date, amount, and reference, including partial credits after fees.
6. Communication: return authorizations issued (or requested and not followed), and messages about the return.

Be specific in the rebuttal: “Order AB1-10023 was delivered March 2. No return was received at our published return address. The Card Member did not request a return authorization.”

Refused deliveries

When the claim is “I refused delivery,” the carrier record is decisive. A tracking history that shows “delivered” rather than “refused” or “return to sender” undercuts the claim. If the carrier did record a refusal, check whether the package came back to you. If it did, the Card Member is usually owed a credit under your policy.

How to prevent C04 disputes

• Issue prepaid or trackable return labels so you and the customer can see the return’s progress.
• Refund on carrier acceptance scan for low-value items, rather than waiting for warehouse inspection.
• Auto-email when a return is received and when the credit is issued.
• Disclose restocking fees and return windows at checkout, not only on the policy page.

Should you fight or accept?

Fight when no return arrived, the return clearly fell outside a disclosed policy, the delivery was not actually refused, or you already credited the Card Member.

Accept when the return arrived within policy and simply wasn’t processed. Don’t refund separately once a chargeback has posted. Then audit the returns workflow that let it slip. Related: C02 Credit Not Processed.