2. Submit a refund application: fill out a refund application form according to the requirements of Shang He and submit a written refund application. Be sure to provide accurate personal information and relevant materials for joining.
3. Patient follow-up: After submitting the refund application, you need to wait patiently for Shang He's handling and reply. If you don't get a reply within a reasonable time, you can follow up appropriately and supervise the progress.