1. Report to the public security organ: You can go to the local public security bureau or police station to explain the situation to the police in detail, and provide relevant evidence and materials, such as promotional materials when purchasing products, product introduction, contact information of sales personnel, etc. The public security organs will investigate this and take corresponding legal actions.
2. Consumer complaint associations: Consumer associations are organizations that protect consumers' rights and interests and can help solve problems. You can contact the local consumer association to explain the situation in detail to the staff and provide relevant evidence and information. The staff will investigate the complaints and communicate with relevant parties to safeguard the legitimate rights and interests.