Even so-called premium, paid VPNs share IP. By the way, in order to feel safe and secure when playing on casino with VPN, you should choose a VPN that offers dedicated IP address. By doing so, you'll be the only one who uses that address and you won't have to worry about blacklisted and shared IPs.
If you are using dedicated IP it will help you a lot like if some addresses are under suspicious and if you connect with the same one it can be problematic for you but I also use it and haven't faced any problems because it's paid one most probably.