1. First, the applicant is required to provide valid identity information and purchase records, such as invoices, vouchers, contracts, etc.

2. Then, the applicant submits a refund application to the customer service through 123 15, and provides relevant information in the application, including the order number, amount and payment method.

3. 123 15 customer service will review the information provided by the applicant, and will return the refund by the original way after the approval.