Siti Cable — Siti broadband is not working from the day 1 it's installed

Address:	New Delhi, Delhi, 110074
Website:	www.siticable.com/ServicesBroadband.aspx

I got a broadband connection from siti cable on 22 june 2016 with pakage infinite having 50 mbps speed but from the day 1 its not working properly and when its working speed up to 5 mbps only i complain on its customer care but they are not listening and its technician is also not picking up the phone now my internet is down by 3 days but nobody is want to listen . can u please solve my problem ASAP.