Hi there my friend is from Armenia, he registered in Google AdWords and created ad, then charged his account about $10, but he is still waiting for ad approvement (about 2 month), who can say what's problem?
Contact them . somtimes they need you to contact via email. Meanwhile, i think ur account could possibly be working. maybe ure keywords dnt hv enough searches. or problem with compaign
I'm not from USA and my Google Adwords works fine. Been with them for 3 years, no problems whatsoever.
Google does not have a specific method , they randomly acept , they randomly dont accept some one , they are not more organised yet .