Airtel — I am complaining against network

I am lokesh suthar(chitri, Dungarpur, Rajasthan) holding airtel mobile no. [[protected]]. Now in my mobile suddenly lost network and doesn't show any signal.. I try in another cell but having same issue..if I search for network then my application is hanged and stopped working, and showing only emergency signal. I am not able to call(dial & recieve) anywhere including customer care(121). You plz resolve this problem asap. Its very urgent..
I have this type of issue 3 times in last 1 year..and paying 150 ruppes every time..