Airtel — bad internet and # customer care

For last 2 week i am getting such bad internet connection, i have a 4G pack yet i receive 2G signal a lot of times, and even when i get 4G signal, the speed barely crosses 50kbps. I have tried contacting the CUSTOMER care, but no use.
Airtel has one of the ### CUSTOMER care i have seen so far, and your airtel app is so bad, everytime i try doing anything, either searching a query or diagnosing a problem(which is pointless) all it shows me is technical difficulty faced.
And now even the call has started to drop in between.
Such bad condition and in advertiser airtel claim to give service even on mountains yet i can receive any decent service in my home.
such ### service and CUSTOMER care.