I was travelling to US on a business trip and decided to use Clay international sim card. Having burnt my fingers, let me warn you that clay telecom has alot of hidden charges that they do not disclose at the point of signing up a client. I took a plan for 10 days with everything activated, but when i activated my card landing in US my data services wasnt working. The customer care said that it would take about 6-7 hours for it to start working which was pretty unrealistic in the first place. The story doesn’t end here. when i got my bill it was a bloody shocker – clay had charged me for 15 days, something that i wasnt informed of and also for the data that i didnt use. I totally agree with everyone else who says Clay sim cards are a bad choice !!