Mahanagar Gas — Gas connection not done even after more than 100 day. bp no [protected] & [protected]

Address: 400078

Website: Mahanagar Gas Ltd Mumbai

1)Complaint ref no.given by MGL. 2823824 & 2823830
2) Connection requested at Bhandup, LBS Marg, Dreams Coplex on 29/06/2016
3) Gas connection already available in the complex except my above flats,
4) Registration, deposits etc are paid 2 -3 years back when the society is formed.
Attempts were made to get the connection by contacting customer care no more than 10 times but no assured cal back came from them, no definite reply, no feedback.
5) 2 emails sent but no response of any sort.
6) I do not understand what to do to get the connection.
7) They are not giving any information about their higher authority to whom I should contact to get the connection.