Airtel — airtel broadband dongle for postpaid - facing connection issues

I am currently facing connectivity issue with my airtel broadband dongle for post paid and my repeated calls to the airtel customer care number (198) and
[protected] yielded no response from the airtel showroom.
Because of the above, i am unable to do my regular office activities even after getting the dongle device. Kindly fix it at the earliest and if not, i have no other way except to escalate this to the ministry of telecommunication.