Definitely lacks the customer trust with all their billing frauds --- I used Clay Sim card for UK for not more than 10 days, but i was really shocked when i saw my bill generated within 15 days and amounting to INR 20k, even though when i had a zero rental plan, with no data usage and when the phone was used only for incomings!! Its been more than 10 days that m still in the process of getting this rectified and had their services been great i would have still ignored this, but seriously its pathetic and frustrating.