Firstly, I advise contacting the respective sites regarding your situation and clarify whether VPN usage(Specify which VPN) in this case is fine or not. Take screenshots of your conversation with that particular support executive just in case.

Secondly, if customer support tells you that you won't face any issues, go ahead and purchase a paid VPN service like Nord, Express etc which are far more reliable than free ones.

Bonus with such paid VPNs is the ability to access other useful stuff(TV subscription services etc) which aren't available in your region.