Consult 12366, ask him to help with the inquiry, and reset the new password on the "Find Password" page. If you don't want this, you can ask the legal representative to bring all the information to the tax bureau to reset the new password, and by the way, real-name authentication.
Please click the password retrieval menu below the personal account login, fill in the user name, mobile phone number, SMS verification code, new password and confirm the new password, and then log in after submitting the password retrieval successfully.