Airtel — network issue and data speed

Address:

Mumbai City, Maharashtra, 400101

I am facing network issue and my calls are disconnecting because of lack of network and this is happening for out going as well as incoming calls this really affecting my progress as i am not able to connect to people thorough calls nor from messages and i am not able to use mobile data easily, it is becoming irritation to use airtel network.
For this i have already make an complaints in toll free number 121 but they did not resolved my issue and they are not sharing me the docket number so again today i file one more complaint number is c4gsp[protected].
Please resolved this issue as soon as possible.