1. Consumers who complain to consumer associations should make written complaints, and some consumer associations can also accept complaints by fax;
 2. Consumers who complain to consumer associations should have a clear object of complaint, that is, the complained party, and provide an accurate address;
 3. Consumers who complain to consumer associations should have clear reasons for complaints, have their own clear requirements, and ensure that the facts are true;
 4. When a consumer complains to a consumer association, he or she shall provide a copy of the evidence for purchasing goods and receiving services and relevant supporting materials;
 5. When a consumer complains to a consumer association, he or she should leave an address and telephone number that are convenient for contact. In order to safeguard their legitimate rights and interests in a timely manner, consumers should first consult the local consumer association by telephone before making a complaint, and then submit written complaint materials to request mediation.