I purchased SIM(Rs.3000/-) from Trivandrum Airport on my last US visit. I clearly told them Im going to a place called Bozeman in Montana state. They assured me that as soon as I land there. I can start using this SIM. In reality it didnt get the network at all. When I called their partner provider in Bozeman, they told me its a poor coverage area and I cannot use it. TOTALY DISAPPOINTED. After coming back to India, Ive been trying to get in touch with their customer care to refund my money since I couldnt use their service in US. Till today, its been more than 6 months now, I didnt get my money back. True Cheaters. I dont have time to file a case in consumer court and going behind all those formalities. So Im posting my experience here so that others can escape from this trap, atleast people going to Montana dont buy this SIM.