OP gave room for the casino to do their deed. If OP had initially agreed to the kyc that would have given him a good stand to fight the battle to making sure he gets his funds back irrespective of what the situation maybe but since he rejected a kyc offer, the casino took advantage of it to carrying out their actions on blocking or suspending his account and lastly, I do not think this has to do with country or IP restriction then if so it means OP has been using a vpn to access the site and possibly forgot to do so and upon discovering it, they used it as a bait for OP by blocking op account.