I bought two international calling cards for ten dollars. But it seemed that they didin't work well. When I made the first call to China, the operator told me that my funds enabled me to talk for over nine hours. However, when I made my second call, the operator told me that I could only talk for an hour also while my first call merely lasted for about ten minutes. I felt I was cheated. I've run out of money in both calling cards and was only able to talked to my families for about twenty-five minutes also. I really feel bad about it!