This is just a scam. Finally, I want to make a fortune. There is no such thing as changing grades. He also showed me all my exam results and asked me if I wanted to change my grades. If I change the score, I will pay the person who changed the score, which will cost thousands. He said he wouldn't give me a refund, and now he can't even find anyone and the phone can't get through. Even the content of Baidu search, which is still in education, has been deleted a lot, such as those legal representatives and bank accounts.