Due to the customs declaration, tax payment, etc. involved in exporting goods, orders can be cancelled through customer service before shipment. Once shipped, returns or exchanges are generally not supported, except for goods with significant defects. If you have any dissatisfaction with the product or our service, please contact customer service and we will do our best to resolve it for you. If you encounter product issues and need to submit a refund application, you can submit a refund application online or contact customer service to submit a refund application for you. After the product is returned, the platform will review the refund for you. After the refund review is successful, the specific refund period will vary depending on different payment platforms (usually 3-10 working days). If your order refund exceeds the refund period and still does not receive a refund, please contact customer service for processing.