The usual means of this kind of fraud is to impersonate various units and induce you to "register your personal information" and "sign a contract" in the name of winning a prize, making a loan, and handling a card. And then cheat you in the name of insurance premium, notary fee, income tax, verification fund, etc. If you refuse, the liar will tell you that you have been charged with unwarranted charges such as breach of contract (impersonating a court), falsely claiming to send you a subpoena, and even take coercive measures to scare you and cheat you. Ignore these liars! If I call to harass you, tell him that he has reported the case. The police advised him to turn himself in to the public security bureau and repent. The detention center prepared a new year's eve dinner for him ... or just sent him two words: fuck off!