Most sellers think they lose chargeback disputes because their evidence isn't "good enough." After looking at hundreds of cases, that's rarely the real problem.

The real reason: they respond too slow, with the wrong format.

A few hard truths:

1. Processors have strict response windows — usually 7-20 days depending on the card network. Sellers who wait until day 15 to even start gathering evidence are already behind. Start the moment you get the dispute notification, not when you "have time."

1. Evidence needs to match the reason code — "product not received" disputes need tracking + delivery confirmation. "Product not as described" needs your listing screenshots + communication logs. Submitting a generic evidence packet for every dispute type is why banks reject it.

1. Timestamps matter more than you think — a delivery confirmation from a date AFTER the dispute was filed carries almost no weight. Your fulfillment records need to be captured and stored in real time, not reconstructed after the fact.

1. Customer communication is underrated evidence — a polite "hey, tracking shows it was delivered on X, let me know if you need help" message sent BEFORE a dispute is filed is one of the strongest signals you can submit. It shows good faith.

Quick action item: If you're not already saving delivery confirmations and customer communications in one place the moment an order ships, start today. That single habit prevents more chargeback losses than any perfectly-worded dispute letter.

Happy to answer questions on specific reason codes if anyone's dealing with an active dispute.