Is it possible to move countries and get necessary ID there?
Yes, I think that should be the most preferable option to do right now at the moment, by moving to an unrestricted country such as Russia, Norway, Finland, Poland or Slovakia, and complete the KYC so you can have given access to your fund and withdraw it, rather than trying to play smart and gets your account terminated if you happens to use VPN, as it's against it's rules. Because I actually noticed that UK is actually among it's list of restricted countries by BC.Game casino, of which I'm pretty sure could be as a result of unfavorable licensing law. Or, how about you contact any trust worthy Russians on this forum and discuss percentage that you will give him/her if the person helps you complete KYC and have access to withdraw the funds. Because I'm pretty sure there will be people willing to assist you, but only for a cost.
where can I find them?
Okay.. you can get
Russians from their local board whose link I provided above. But also bear in mind to only work with members who has got reputation and willing to agree to do the work with your terms. But please don't make mistakes to give such offer to a complete newbie..
However, I wish you good luck...