Indian Oil Corporation [IOC] — Delay for cylinder for transfer the connection

Address:

711102

I have double cylinder connection in indane kalkaji gas service, new delhi. My job transferred in kolkata. I surrendered my gas cylinders in delhi and received transfer voucher from kalkaji gas service. I submit this transfer voucher to indane chatterjeehat gas service, howrah with all the required document on 13th july 2016. Today 23rd july they told me online massage came transfer voucher not found. I have to contact iocl office in kolkata.
My question is they are only obstruct for transferred customer. For new customer they are make extra initiative for selling their gas oven.
Please check the matter and revert me as soon as possible.