Some websites use tech that blocks access from VPN .. there are services which keep track of VPN IP blocks, so if traffic is coming from those, got chance they will block   There is something called VPN split tunnelling - which allows you to set which apps can work outside of the VPN (bypassing VPN) even when rest of apps are using VPN   For example, you can install multiple browsers - Firefox, Chrome, MS Edge, Brave. And use the Split Tunnel function on Brave. So Brave will be outside the VPN umbrella  and can access Sinkie geofenced shiat like Mewatch, SGPools, etc. since it will appear as if the traffic is coming directly from your ISP and not VPN servers. 

@noobmaster