Airtel — network issue related complaints

In my area the airtel network is very poor. And network shows no service as a template on network bar. It's is very poor in data also. And we are calling to customer care, they ignore the our complaints and do not give any updates of our complaints. It is very unexpectable activities shows by company and i'm suffering these problems from many times and they charge money o[censored]nexpected big amount and we are give these amount on timely but they are not hear any problem