If you enter your six-digit 2FA code correctly within the 30-second time limit and still encounter a “2FA Google Auth is invalid” error, it could be that your 2FA application is not properly synchronized with your device's time or the network time.
*** To fix this, enable network syncing under Date & Time settings on your device.
Go to System > General Management > Date & Time
Switch on "Automatic date and time"
Go to Settings > General > Date & Time and switch on "Set Automatically"
*** If the error persists, we recommend you to delete your 2FA entry and create a new entry using the QR code or the manual key.
If the steps above did not work for you, please send to email@example.com your selfie photo with you holding your Thai ID card or your foreign passport and a paper that writes "I would like to disable my 2FA", Bitkub.com, submission date and your signature. Your request will be processed within 24 hours.
Example of a selfie for a request to disable 2-factor authentication
In case there are any problems or concerns, please seek assistance by any means below.
Tel: +66 2-032-9555