My wife Mrs. Rajasri Ganguli has been using airtel mobile phone for last 5 years. It is a prepaid Kolkata (India) connection. The phone number is 9831361270. She is now stationed in Ghaziabad and does not use the number here. She uses the phone when she goes to Kolkata only. A number of times she has requested for DND ( do not disturb), but the airtel company sends her all types of promotional SMSs. They send a number of updates on new products, value added sevices etc. AND SHE IS CHARGED FOR INCOMING SMSs. It is illegal and amounts to cheating. read full review »