Airtel — I am complaining about airtel

Address:

Sonitpur, Assam, 784028

A few days back i filed a complain agaist airtel because there is no network in my sim card whereas everyone else have full network. It shows emergency calls only and i am unable to use my sim for more than a week now. Airtel did send me an email but nothing worth helping was there and my sim is not working still. I leave far away from home i need to call people. I have mailed airtel many times but they are not solving the issue. Kindly look into this matter.
Thank you