Airtel — network problems in dighori nagpur for mobile no.[protected]

Address: Nagpur, Maharashtra, 440034

You have promised that airtel network is faster than any network and covered more than 50% areas of india. I already made complaint on 24 august 2017 but no improvement in your services. There is no use for keeping your sim. Please make arrangement for keeping network always otherwise we have to surrender the sim of your company.
Thanking you,
Yours
Yashwant bhambulkar