Update: in next day they said "It is global restriction we try to solve it as quickly as possible , we are very sorry to keep you wait but please be patient."
This was exactly my thoughts as I read through your post. If Betnomi wants you to complete KYC, why disable the button leading to KYC? I thought it could be a general issue from the backend.
Meanwhile, having issues with KYC is somthing that isn't complicated, so support must have given you a tangible reply but you didn't include it here. I would like to see the screenshot of the chat between you and betnomi support.
However, I know the feelings when you are hindered from withdrawing when the deposit was seamless. But I'll advice you to calm as your account isn't locked, it could be the delay as attested by some forum members.
Have you tried writing on their Ann thread about this?