Airtel
Subscriber is helpless in airtel

I change my faulty sim card having network dropping problem on 9th of sep. At airtel head office D-185 okhla phase 1. They promise me to activated it with in 2 hour but still it is not activated and i complain regularly to customer care and also visited there head office 3 times. No one is helping me for solve out this problem only they have promise and harassment. Airtel is going biggest poor customer satisfaction service provider in India.