Airtel — no network since one month

Address:

Kurukshetra, Haryana, 136118

My phone no is [protected]. There in no network since one month. Talked to customer care 121. But no respons.no in coming and no out going calls possible.we have a data card also .we are unable to use data card .we are facing a lot of problem . No engineers bother to visit for checking.
Since I am Airtel customer for a long time. But due to this problem now I am thinking to Port to other network.
Hope procure your kind and much needed action in this matter.
Regards
Ranjana kakkar