I have been using Airtel Postpaid connection (9860069042) for more than 3 years. Today at about 10:15 PM I started getting msg "Unregisterred SIM". When I contacted 121 they gave me a very bad experience. I called thrice as was put on hold for more than 25 mins. They told me that I need to submit my documents again. I had no prior information about the same and above that the conn was barred at night when I could not do anything. I have few questions: 1. How can I get service for more than 3 years if my documents are... read full review »