Airtel — very poor airtel 4g network that too in bangalore

Address:

560066

My airtel dongle number : [protected]
I got this dongle connection from my company for on-call support.

From past 3 weeks, at my home, ramagondanahalli 560066, 4g network coverage is at worst. Speed shows 0kbps most of the times, can you believe this funny situation, thats it, nothing else required to convey.
This is total pathetic, cheap, cheating, shame service from airtel.

Kindly provide proper 4g network or refund my money then cancel the connection.