Airtel — airtel 4g hotspot cancellation

Website:

www.airtel.in

I purchased a yearly pack sometime in august 2018. It has been working fine till now (Early december 2018). I've been having connectivity issues (Close to zero connectivity) for 2 weeks now which has impacted my work from home. I reached out the airtel customer care and they have not been the least bit helpful with the complaint.

I've now raised a request for cancellation and they choose to ignore it as well.