Mahanagar Gas — Regarding half work done of new connection

Address: Raigad, Maharashtra, 410210

Hello,
Mahanagar gas contractor came and installed the pipes but did not connect a meter and also didn't give a connection to the main line. The cheque was given on 31/10/15. i.e its almost a year and the work is not completed since then. Approx 250 people had applied and only a hand full got the connections the rest are still awaiting the connections. Even after lodging a complaint (complaint no 2760496) no action has been taken since then