Oh man, this does have some complications in it in terms of that situation where the site block the player then unblocks after which then gave the permission for the player to play again. I think that is a fault made by the management itself. On top of that, the blocked countries list were not all set up until last year, which gives a loophole on their ToS. On the other side, OP knows from the beginning that dealing with such site is risky, which even happened by using vpn from the very beginning. I hope this case gets resolved, and playbetr.com would shed a light to this.
The site didn't block and unblock him, but they're unblock and block him, don't mix it. The @OP himself know if Russian get sanctioned and there's no way to access any services except from his countries, but he think he's fine since he has verified account before.
Did you mean this case get resolved is Playbetr need to return the deposit and winnings (if he have) from @OP? Well the casino can refund or not, it's up to them. IMO it's not that wrong if they don't return the deposit, but if they want to return it, they're very generous.