1. Report to the local education bureau: you can report violations of private schools to the local education bureau. The Education Bureau will investigate the report and take corresponding law enforcement measures.

2. Report to the labor inspection department: If private schools charge sponsorship fees during the enrollment process, this may involve illegal employment. You can report to the local labor inspection department, and they will investigate.

3. Complain to the Consumers Association: The behavior of private schools collecting sponsorship fees may involve the protection of consumers' rights. You can complain to the consumer association and ask for help.