Why the hell do streamers advertising them use vpn to play their favorite slots? What do you say then? I see you are very smart, why do they play with vpn and do not say anything about the fact that it is strictly forbidden to do so.
You forget that you are a regular user and not a streamer who is advertising them. There is a difference because they might have been granted more privillages than you. What you have to always do is to individually read the terms and conditions
You won the account alone and not in conjunction with the streamers. If a provider blocks you from using their service. Then accept that or look for an alternative casino where the game is not blocked in your jurisdiction.