H. P. Gas — Non functioning of Gas Booking System

I am a HP gas consumer with the HP gas dealer M/S Universal Gas Co. of 25, Sadanada Road, Kolkata 700 026.
Previously I used to book my gas with the dealer over telephone and had no problem.
The HP gas authorities all of a sudden discontinued the system and forced the customers to dial 1716 or 2227 4438 for coputarised booking of gas.
The system woked well for few months but of late it is becoming increasingly difficult to book the gas through the new system.
The toll fre number 1716 is continuously engaged and the other number 2227 4438 is not being answered.
The HP gas Customer care telephone number 2282 5835 is also not being answered.
HP gas authority must answer the reason for such harrasment to its customers and advise them how to book the refills in future.
P.K.mukherjee
Kolkata 700 026.