Airtel — airtel 4g sim not working. lost network suddenly and not connecting anymore.

Address:

Coimbatore, Tamil Nadu, 641006

Airtel sim suddenly stopped working. I thought it was a phone problem but it’s not. I tried my friend’s airtel sim and it works fine. My sim is showing no network in a full network location. This is very inconvinent as i am travelling tomorrow and i have no means of communication at this point. This happened all of a sudden without any warning. This is most inconvinent and inrelaible.