1. First of all, you need to contact the customer service staff or the person in charge of Sherweisi Catering to explain the reason for the refund.

2. Secondly, submit an application for refund according to the requirements of Sherweisi Catering, and provide supporting materials and documents.

3. Finally, wait for Sherweisi Restaurant to review the application for refund, and after agreeing to refund, it will refund according to the prescribed refund method.