1.** Contact relevant institutions * *: First, you can contact the school or institution that issued the certificate and ask them about the authenticity of the certificate. Provide relevant evidence and materials and ask them to investigate.

2.** Collect evidence * *: Collect all evidence that the certificate is forged. This includes emails, chat records, payment vouchers and other information related to your certificate.

3.** Report to the local education department * *: Submit your questions and evidence to the local education department, such as the Education Bureau or relevant certification bodies. Require them to carry out certification and conduct corresponding investigations.

4.** Report * *: If you suspect that someone has forged a certificate, you can report it to the local police. Give them all the evidence you have and let them investigate.

5.** Seek legal aid * *: If the situation is complicated or urgent, you can consult a lawyer and take appropriate legal action according to their suggestions.

It is very important to have reasonable doubts and evidence when reporting, so please make sure that you have collected enough evidence to support your report and abide by local laws and procedures. In addition, it is important to take action as soon as possible to avoid the loss of evidence or the confusion of witnesses' memories.