Refunds & Disputes

Two different mechanisms, easy to conflate: a refund is something you initiate; a dispute (also called a chargeback) is initiated by the customer's bank and requires you to respond.

Refunds

Full or partial, via POST /merchant/refunds — see Refunds API.

Disputes

List open disputes with GET /merchant/disputes, view one with GET /merchant/disputes/:id, and submit evidence with POST /merchant/disputes/:id/evidence before the response deadline shown on the dispute record. GET /merchant/disputes/analytics gives you a dispute-rate trend — watch it closely, since a high rate can affect your standing with card networks.