Airtel — not able to receive calls till evening

Address:

Mumbai City, Maharashtra, 400043

I would like to complaint to airtel and inform that there is no network in my area since last 1 month or more and same with my mother's airtel number also which [protected]. We both are unable to receive calls from morning till evening. Evening we get the network. Please check what's wrong with the network. We are missing important calls and facing inconvenience since a month now.
Kindly revert please on [protected]@gmail.com