I played in UK using VPN, deposits and withdrawals fine til now. Should have done my research, and now I can't upload UK documents to verify myself.
Is there any action I can take to get this money? Any forums where I could sell the account? Could I move countries and pass it that way?
Wow, this is a huge mistake you had to make. You this one of many reasons gamblers are encouraged to carefully go through a casino ToS to avoid finding themself in tight corner such as yours.
The only action you can take now is to contact their support which you likely may not get the kind of response you'll be hoping for. Wait. Do bcgame or any casino at all allow for the selling of account from one hand to another?