I used Clay Sim card for US for not more than 10 days, but it was shocker when i saw my bill generated within 15 days and amounting to INR 18k, even though i had the 35$ plan activated which included free incomings but yet i was charged for each and every call i received. Been more than a week and m still in the process of getting this rectified and its quite frustrating to deal with people like these.