Bharat Gas — Non delivery of cylinder refill

I booked a refill cylinder on 16 Feb 2015. Booking number- 1290634. Cylinder was not delivered for 1 month, and today I see its online status as cancelled. Why it is cancelled ???? This is really very irritating. I have been waiting for refill cylinder for past 1 month, but there is no response of raising any complaints. I raised several online complaints. Also registered two offline complaints, but still not getting any response. It would be great if you can arrange to deliver it immediately. I got response of only one complaint - number 495930, saying that issue was resolved. I am not sure how it is resolved, when I still didn't get refill cylinder. Kindly look into this request on urgent basis. It has been more than one month now. Thanks for your help.