Legal analysis: you can complain to the consumer association or bring a lawsuit to the court. As the final guarantee of consumers' civil rights, the court can sue the relevant infringing subjects when consumers' rights and interests are infringed, so as to achieve the purpose of safeguarding rights. The administrative departments for industry and commerce of the people's governments at all levels and other relevant administrative departments shall, in accordance with the provisions of laws and regulations, take measures within their respective functions and duties to protect the legitimate rights and interests of consumers. The relevant administrative departments shall listen to the opinions of consumers, consumer associations and other organizations on the trading behavior of operators and the quality of goods and services, and promptly investigate and deal with them.

Legal basis: Article 32 of the Law of People's Republic of China (PRC) on the Protection of Consumers' Rights and Interests, the administrative departments for industry and commerce of the people's governments at all levels and other relevant administrative departments shall, within their respective functions and duties, take measures to protect the legitimate rights and interests of consumers. The relevant administrative departments shall listen to the opinions of consumers, consumer associations and other organizations on the trading behavior of operators and the quality of goods and services, and promptly investigate and deal with them.