Airtel — Airtel broadband not working

Address:

Patna,Rupaspur thana bailey road

Broadband internet not working called customer care many Times. No one is trying to resolve the problem. Everyday they say service engineer will visit and no one visited till 7th may.its already been almost so many days with technical issues.
After so many calls to customer care and writing to appellate authority no solution .
It's prepaid broadband already recharged money getting waisted.