This is truly the best, but it is still recommended that you read their Terms of Service because some of the support will state that VPNs are prohibited, but if you ask another support, they will state that they are not. I'm not sure if they are aware of the situation, but reading their terms of service and looking for some sort of anonymity keyword or VPN so that you can confirm it was not allowed was. Gambling is still prohibited in a number of countries due to religious beliefs or other negative consequences, but as you can see, the majority of countries are allowing it because it generates significant tax revenue for the government.
Reading their Terms of Service is a must nowadays since many casinos realize that their potential customer needs to know their rules and hope that they do not try to break them. The support system should know about VPN usage on their site so I think they can give an answer related to the usage of VPN with the right. Although gambling is prohibited in some countries due to religious beliefs, some people still play gambling and make money from gambling. It will be up to their people because they know the risk and consequences of playing gambling.
^ That is if they have an announcement thread you can ask them or their staff because if you are on the gambling site, how could you ask if you can't access the site because it is already blacklisted. Many gambling casinos were against this VPN because it could be the gateway of the users to have fraud activity because they know they can't be traced because they already masked their IP address and of course, their identity. Once you access the gambling casino site, reading the TOS is a very important factor to avoid mistakes in the future.
Besides that, if we can't access their site, it means that that site has blocked our country's IP and we don't have to keep trying to access the site using a VPN because, after all, we will get in trouble because we come from an existing country on their blocklist. By reading the TOS, they hope that we understand what we should not do while playing on the gambling site and avoid harming our own account.