You are not alone! The same thing happened to me LRD. I registered, but there was something strange happening (with server glitches I believe, which happens) so I never got to play PPA. I still don't get to register for the games.
You're in Texas, which is in the US, albeit it is close to Mexico!
I'm in California
... so I'm not surprised if it's not considered the US. We are about to fall into the ocean, & we're the land of fruit & nuts and the Twinkie defense.
Good luck, I hope we both find our way home to PPA.