Airtel — tower not showing and tele verification not able to do

Address:

Chennai, Tamil Nadu, 600062

I switched from aircel postpatd to airtel postpaid.I received message for televerification by dialing 59059 from Airtel. I inserted sim and tried severa times in basic as well as android mobiles swithching trays and but the network is not activated and it is showing "emergency call only". i have removed the sim and checked many times, also tired manual network search, but it is showing all other network apart from airtel. but it been 3 days i have been messaged for activation, still there is no tower at all. Everytime when i concact to the airtel person they are saying it will get rectified and but no result. I am really frustrated and disapppointed choosing airtel. I feel Airtel is not dependable and i should have better selected other networks. Really pathetic.