I didnt use vpn during registration, i done it from the same device.
Precisely because these options exist, they could simply be prevented by requiring verification (at least name, address, date of birth) during the registration process.
So, they haven't taken any steps to prevent you from creating an account at BCgame. They should have at least blocked your IP address and device fingerprint. It isn't possible to prevent users from creating multiple accounts by applying mandatory KYC verification. Users who have gambling problems will use their known people to complete the KYC verification.
I broke a rule that was supposed to protect me as a player and bc.game helped me by freezing my funds in the amount of 29 ETH. Doesn't that sound strange?
They didn't allow you to login and deposit on the same account from which you had requested self-exclusion. You created another account to play there, it is against the terms of the casino. You accepted their terms during registration. Therefore, you are still guilty here if we look at it from the different side.