When you are a VIP on any casino, you have more privilege than the regular gamblers and if you have a problem, the site will take care of your problem and solve it as soon as possible. Unless you did a cheat on their site, even if you have a badge VIP, they will not let you get your money because of a cheat. But if you tell an honest story to them, I am sure they will help you and solve your case. You can ask on their ANN, send a ticket to them or even PM'ing @OP who manage their thread so they can be aware of your case and check it and solve it.
I will suggest the ops drop a complaint on the main thread to see what exactly are his benefits for having a VIP account and why he is not getting those benefits on the account.
I hope the problem gets solved in the nearest future
Usually, when a VIP has a problem or complains to the site, the site staff will give more attention to them and solve the problem as soon as possible because that is related to their reputations. And it is not easy to become a VIP on their site so the staff must take care of them carefully.
I guess he will not come back here and clarify the situation
If I have a VIP account on any gambling sites, I will not leave it anyway like @OP but still, try to use it for gambling because becoming VIP is not easy and I am sure there will be a benefit that a VIP will get. So it does not make sense if he does not use his VIP to get that benefits unless he only writes a fake story