Complaint is an illegal and criminal fact that the infringed person infringes on his legitimate rights and interests against the organization involved, and he has the right to claim his rights from the relevant state organs. The complainant is the person whose rights and interests have been infringed. Consumer's complaint refers to the behavior of consumers who need to buy, use goods or accept services for their daily consumption, and after a consumer rights dispute with the operator, they request the mediation of consumer rights protection organizations to protect their legitimate rights and interests.