Why doesn't Firefox VPN work with Pandora Music?

Dear Firefox. I've now got 2 VPNs. One's called Proxy VeePN (that's how it spells it!) and the other one's your new one. Proxy VeePN lets me use Pandora Music. Your one doesn't. Pandora can tell I'm in England on your one, it can't with Proxy VeePN (it thinks I'm in Switzerland, pretty sure.) Why doesn't your one work with Pandora? I haven't tried it with anything else yet but then I really only use a VPN for Pandora Music anyway. Sometimes there's a couple of American games I play, but mainly Pandora. Why is it Proxy VeePN works with Pandora and yours doesn't? Yours respectfully, Chris, Windows 10 user cos I can't afford to buy a new computer that works with Windows 11 (I know there's a registry hack but I don't think this one's fast enough anyway, was designed for XP and tends to die a death with 10, let alone 11! Too slow. The computer, not its owner!) Yours puzzledly, Chris.