Shawn
I tried to call your number many times. Viber says you are not in Viber. I will help you. What is your gf's contact info here in U.S. I will talk to her and send her money. You can pay me later once she received the money.
We don't have to necessarily transfer from Western Union. As I said you can pay me later after your gf receives the money. That way you don't have to worry about tracking number.