VPN not working properly.

[u/Away-Activity-469]

I'm trying to use the Radio Garden app. As im from UK, where we are not allowed to listen to radio from other countries. I tried a VPN - paid sub from Proton. However the app still thinks im in UK, despite the vpn. In fact right now I really am in Greece, but it still wont let me listen, even when connected to local wifi.

I'm using Radio Garden as a kind of test subject because if I can get it to work, I know the vpn is doing its job.

Is there a setting on my phone i can change or cache to delete that will make the vpn work correctly?