Airtel sim
No network coverage last 2 months

I am Airtel consumer last 5 year my no. is 9867159521, but last 2 month my cell phone network is out of coverage area is not only my cell phone but also my all caligs phone also like this. i am very fead to complaint again and again. i am last time complaint other wise i and all my 50 caligs changes card Airtel to Vodafone.

pls. your support is important.