did you get this resolved? I have the exact same issue.
Did you contact the support?You can contact their support here: https://c-cex.com/?id=support
You can also try sending a PM to the C-Cex account on this forum: https://bitcointalk.org/index.php?action=profile;u=220467
Soon enough your issue should be solved as the C-cex account is a bit more active than most of the exchange's accounts.
I have same problem and got same reply last week, they asked me if I want to remove my account 
but then they told me to go to this link https://c-cex.com/?id=remove2fa but I still can't remove 2FA from my account and support always full 
If you be patient much,your issue will be solved. Don't ya worry. but then they told me to go to this link https://c-cex.com/?id=remove2fa but I still can't remove 2FA from my account and support always full 