I'm having the same problem for about 2 months, I created lots of ticket to the support but they don't help.
Really this time I was disappointed, they usually help and I was happy, I thought c-cex support was the best one.
One of their reply was this: "Hello! As we understood you correctly - you want to remove your account permanently from C-CEX. Is that right? If yes - please, confirm your action with reply in this ticket "I confirm" and we will delete it. Have a good day! Let us know if there is anything else we can help you with. Thanks!"
I'm telling them that the remove 2FA is not working and the answer was removing my account with my money, it's really terrible.