1. To find the contact information of the local market supervision and management department, you can inquire through the local government portal website and the official website of the Market Supervision Bureau.

2. Call the complaint telephone number of the market supervision and management department, or go to the market supervision and management department to make a complaint on the spot.

3. When making a complaint, it is necessary to provide detailed report materials and evidence, such as photos and videos, for the market supervision department to investigate and verify.