Indane LPG Gas — every time late delivery

Dear sir
i have a gas connection from sushma gas(dealer of indane gas), kavery path, mansarovar, jaipur.
i m waiting for my gas cylender since last 50 days after booking date, my gas no s2145, i m facing a big problem due to this delay, i have made more then 50 calls there in last seven days but no respoce.
i m facing this problem every month since i have connection.
please do need full and help me

Thanks and Regars
Kundan singh
62, gali no 4, moti nagar
Queens road, Vaishali nagar
Jaipur(Rajasthan)