I personally do not also encourage people using VPN to access most of the gambling site as it extremely risk and dangerous to do, if you have no access to the site then fine it's important to write to support to know what they wanna say about your country, although maybe it could be some regulations issues or none compliance of the operational terms between your country laws to operate under that jurisdiction.
Upon research there's information shown that this casino is VPN friendly so I assume they allowed people to use that tool. But for more safety and get accurate information about this they should try to ask the support about this situation and try to ask if they are allowed to used VPN. If they give clearance and allow people to use that to avoid restriction then its good to continue, but if they discourage people to do it then better move on and find another casino.
But if I know my country is in restricted list even if they allowed to use VPN I still choose not to gamble in their casino since for sure there would be a sudden change happen which can potentially harm us in future.
Or as a suggestion, what if Rakebit.com casino created an alternative domain like Stake did. .ac .tr etc. Maybe we don't have to worry and don't need to use a VPN.