If someone is living in a country where you're not allowed to use Betfury how are they supposed to access their account to withdraw their money? The only thing that appears is a message that says 'gaming denied'. BFG tokens aren't even withdrawable so there is many people who just have their money trapped on the website because of these restrictions.
Shouldn't they be prohibited from playing in the first place? But then if such were to happen, BetFury would request the user to withdraw the funds before closing the account. That is, if its in good standing.
The thing is, you are already not allowed, you are doing something illegal. Let's say you are from a nation that is not allowed to play here, and then you managed to get in and gambled, whatever happens after that is your own responsibility and you should not be blaming anyone else for it.
If the casino keeps your money and doesn't give it back to you, that means they are keeping it until the government (or cops or whoever does this) asks for it, and that is understandable. Legally they are forced to give that to the authority that asks for it, and they will do it, if they try not to, that will end up very bad for them as well but they can keep it away from you because you did something illegal and giving it back to you would be illegal of them as well. Long story short, if you gamble from an illegal nation, that means you are taking all the risks with it.