I was traveling to US and under the impression that Clay Sim Cards are affordable I bought their $30 plan. Trust me with the kind of usage and calls that I made, my bill shouldn’t have been more than 8K but instead I got a bill worth 25K. Calls were duplicated at regular intervals, even when it was midnight in US. Not only have they duplicated the calls, but have charged at their own will. Totally disappointing services from Clay Sim Cards.