Airtel — plan change and mobile data

I'm frustrated about the pathetic customer service that airtel is providing. First, their network is very bad and i don't get mobile data connectivity most of the times. The network is very slow, when i get connected. Then, one of their executives called me and suggested that i form a family plan and add my family members number to that. I did that but the billing became very high. So i wanted to opt out of it and they said i could do that only thru myairtel app. But i was not able to remove family members out of family plan thru the app it showed message that the feature is not enabled and i must call customer service to do that. I called customer service and raised request 3 times to remove the family plan but it never got done. Then i asked for plan change but then they stopped my mobile data. Again i called customer service, they put me on hold for more than 35 min and then disconnected without resolution. For change in plan, why should my mobile data be disconnected and why would they disconnect my call without giving proper resolution. Airtel doesnt bother about customers and their billing is false.