Google authenticator is now available! Check it out:
https://bit-x.com/account/default/dashboard (under 'Security Section' then 'Two-Factor Authentication')
Enabling it will remove the need to receive a text message with a verification code every time you login. You will still need a valid phone number when signing up.
Unfortunately
something is wrong with your google 2FA.
I am using this on the daily basis, especially on exchanges and there I have no issues.
But on Bit-X it was a bad experience: I had to enter the codes about 15 times (!!!) until one was accepted. I don't know, is your google auth clock not sync-ed well??
For now I had to switch back to SMS 2FA. Please check your google 2FA.