I don't know what to tell you but, I'm in the US, with a US SIM card. I'm almost always using a VPN but the endpoint is usually in the US somewhere. Never had a problem.

I started having trouble receiving into it after this article came out. I was able to send my balance out, except for one Satoshi. https://bitcoinnews.com/legal/wallet-of-satoshi-quits-us-market/