Hi @HANYEU ,
Welcome to the community!
We did an article that you may find helpful. This will guide you on how to retrieve your TPG account password please see the links below.
If you forgot the TPG username, we will raise this to our Account Specialists Team and have them contact you. Please shoot me a private message with your account details (Customer ID/Home phone number) and the address on file.
someelse can help register acc ，i don know userid and password