Clay sims and their overly charger bills --- I had used a clay sim for China and returned it well in time.. I got tge first bill around month end which close to some 6000 rs which was fair as per my usage.  Again after 15 days my card was charged for some 5500 rs for which i got no bills.  I called their customer centre and asked for a document that stated the usage against 5500 rs. There was bo response on email or a hard copy or anything.. Now after my fifth follow up on this matter, i get a mail saying that there is some mistake and the money debited will be refunded within 3 days.. My experience with their sim card was simply pathetic.. You'd rather not use anything...