Contact the Consumer Association and the Food and Beverage Service Supervision Section of the Market Supervision Administration.

1. Contact the Consumer Association: You can call the reporting telephone number of the Consumer Association, such as China hotline 123 15, to explain the situation in detail and provide relevant evidence and materials.

2. Contact the Food and Beverage Service Supervision Section of the Market Supervision Administration: You can call the reporting telephone number of the Food and Beverage Service Supervision Section of the local market supervision administration, such as China hotline 12345, to reflect the problem and provide relevant evidence and materials.