BSNL Broadband
Service delay

I am living in Neelangarai, Chennai. Our broadband is not working from the last one month onwards. We have done lot of complaints through online as well as customer care. We went directly to BSNL office three times. But no officers were there. We got vexed with this problem. Atleast we want to disconnect the broadband. But we paid for modem too. We don't know what to do...