How do I resync 2-factor authentication after changing my mobile phone and re-installing Google authenticator - this is for a test organisation with a single administrator
Your only hope then is making a support call. Possibly they‘re able to deactive 2FA for your account. Woudln‘t count on it though cause this would cause a security issue.
If you don't have your old phone to still be able to log in and you don't have the bypass codes - you are now locked out. Following this procedure to regain access: