Mahanagar Gas — Gas pipeline connection pending since 6 month

Address:

400101

I have applied for pipe line connection and paid on 27/05/2016 cheuqe number 121907 MAHANAGAR GAS LTD 6, 500.00 but still not received response till date and waiting for connection. i have called concern person many times and every time he commit me for complete by day or two but not happening till date. request to complete or refund my money.
address: A 1307 Sierra towers lokhandwala township kandivali E mumbai 400101