Maybe the only thing I can tell you, op, is that if your country is restricted to a casino, it's better not to force yourself to play in that casino, rather than having problems in the end and wasting the time and effort you spend playing in the casino platform.
Most casinos do not want users who use VPNs because, according to their rules, it is a fraud or a crime that can be considered. So it's better to just play at a casino that's open in your country.
The use of VPN is not allowed in any legal and licensed casinos, but in reality many casinos are actually not against their users to use VPN.
They still allow their users to use VPN as long as they does not use it to abuse the casino such as multi accounting, by pass the bet limit and else.
In fact, many casinos provide mirror links to make it easier for their users who dont want to use a VPN because most of the big players come from restricted countries.