Q: Why I can't use imessage iN USA

Hi Andreouell,

Thanks for using Apple Support Communities. Based on what you stated, it sounds like you are not able to send or receive iMessages or use FaceTime. I would recommend that you read these articles, they may be helpful in troubleshooting your issue.

If you can't send or receive messages on your iPhone, iPad, or iPod touch - Apple Support

If you can't make or receive FaceTime calls - Apple Support

Cheers,

Mario