Legal analysis: you can complain to the local industry and commerce department or call 123 15. Consumers' associations shall accept consumer complaints and implement the principle of giving priority to regional jurisdiction, supplemented by hierarchical jurisdiction. Consumer complaints shall be handled by the county-level consumer association or its subordinate branch where the defendant is located.

Legal basis: Civil Code of People's Republic of China (PRC).

Article 509 The parties shall fully perform their obligations as agreed.

The parties shall abide by the principle of good faith and fulfill the obligations of notification, assistance and confidentiality according to the nature, purpose and trading habits of the contract.

During the performance of the contract, the parties shall avoid wasting resources, polluting the environment and destroying the ecology.