I open Google Authenticator and nothing, just an illustration of a cat playing with a wool ball... i.e no codes...?
Do you remember seeing the codes just after setting up your 2fa? or there was nothing at that time as well? because if it's the latter, it appears, it wasn't registered at all.
When i call their 'customer care' number, I get a text right away saysing 'we can see you are calling about a security issue, we can't help you on the phone'... the other day I was on hold for 35 minutes and gave up! I am getting my funds out of there as soon as i get in!
This would mean they can only help you through your support ticket. You could also escalate your case in their social channels. TBH, there's a good chance this could take days so brace yourself.
Next time, switch to aegis app, check if codes are properly registered and always make backups.