BSNL — brodband not working

I took brodband connection [protected] in oct 2012. since then brodband not working properly, after one monthnet statred, after alotof complaint, but not working prperly, since last three months not connected a single moment, I complaint onlije and ofline both, but bsnl not take any action. I paid bills regualrly, in almost 11 months only 2 or 3 months borodband working.