To refund a customer, use BigCommerce to refund on a specific order entry. See screenshots below for a step-by-step example.
Step 1: Locate the order, and click on the Action "..." button to initiate a refund
Step 2: Enter refund details (entire order or individual items or custom amount)
Step 3: Select "Refund customer through third party provider", enter reason, and confirm refund
Step 4: You're all done! The order will show as "Refunded" or "Partially refunded", depending on how much you refunded