Airtel — airtel 3g/4g

I am an airtel customer since 2008. But i believe that airtel, now, is not working up to retain some loyal customers. I purchased a new airtel 4g-sim, of bihar/jharkhand circle, in august 2017. Now i regret my decision of opting airtel for 4g. The signal of airtel 4g/3g at deoghar, jharkhand is highly unreliable and discontinuous. The signal reception is worst here. I have to switch off and on my mobile repeatedly to recieve some signal. Where the price of recharge plans is steadily being increased by airtel, atleast they should also work towards improving the signal quality. Please rectify the problem asap as this is becoming highly frustrating and unacceptable.