What kind of autenticator are you even using? I am not familiar with it.
3 times send direct message still no respond.
This problem has been 3 days
The mobile phone verification is my failsafe if my 2fa token fails.
Be mentally prepared to lose your coins. I hope you don't have much funds inside.
Don't worry, you have all information about your account just contact technical support team. Hope you will soon get back your account.
I think we need some luck to get the account back. There are many accounts of xapo users who had no luck in getting their account back.
Perhaps xapo selectively respond to its users.