Should not be any issues with different regions. Try to use VPN and write me back if it helped please.
That sounds good to hear that your team actually allowed the use of VPN to access your site, but that lead me to another question that need clarification here.
1: will your security team need verification at any point?
2: if yes what will users that are from restricted region do if the gain access through VPN in that situation?
1. Verification can be requested by the team. There are licesense requirements.
2. If you were able to register then you are safe.