I read about Startec, I found that I had the same situation. They charge me but I could not connect any call to over seas. They excused are because I have prepaid account, they can not refund the money I lost because their system has problem. I asked to refund the rest of my money, but the same excuse. I requested they take off my credit card information, they told me the same excuse, because I am prepaid customer, they can not respond to my request. The company is thief.
I checked them; they do not have marketing department as well as the technical department. This kind of company just is destroying the American companies reputation.
They are liar.