Airtel — network as well as voice issues

Address:	Pune, Maharashtra, 411067
Website:	Airtel Open Network

I am facing network as well as voice issues in my area since 2 months. I have a data pack which includes 4g service. My handset is Redmi note 3. I have checked all the pre requisites to achieve good data quality on my handset. I have filed a complaint on open network issues number as provided by the Airtel app. My complaint number is [protected]. The customer care replies with the same answer that there is network congestion. My question is, have Airtel stopped charging me data services for past 2 months?