The same thing as when any other customer wants a refund - Merchant should apply your own refund policies to decide.
Step-by-step guide on issuing a customer refund：
- Enter the merchandise transaction page by clicking the transaction ID ＞Click the "Refund" button at the bottom ＞ Input the refund amount, which can be either full or partial. (For full refund, amount is equal to transaction amount)
The refund will be transferred to users' payment card. Refund confirmation and details are displayed in the "History" on the right side of the page.