Can you post a screenshot of the email where they ask you for the KYC?
I don't think they often practice this!
Sure, there you go:
https://imgur.com/a/NreELZTDo you have proof of your account balance?
I have proof only of my successful deposits: 0.22 + 0.70 BTC. I was not able to take any screenshot, because my account was suspended out of the blue. I did not even request a withdrawal. But I track all my bets in a speadsheet, and the full amount should be over 2.5 BTC maybe even 3+ based on my calculations (I had some pending bets as well).