If you still have backup code, you can download the app Google Authenticator again and then disable / enable the 2FA by yourself.
If you lose the backup code, please send a request to support team for being disable 2FA. Please provide below information in your ticket:
- HopeBook account ID
- Image of your National ID / passport
- Image of your selfie with below national ID / passport with a handwriting paper “Please help me to disable 2FA”
This step prevents your account from being hacked.