Hindustan Petroleum Corporation Limited — Every time cancellation of cylinders booked through net without any information

My consumer no. is 624942. Everytime I book cylinder thru online refill booking I receive message on my id and after few days on its own the same is cancelled without delivery. Why is this done everytime ? Recently, I booked a cylinder with order ref [protected] dated 15.03.2015 (booking ref 37888) the cylinder is not yet delivered but on the net now the status is shown as cancelled. Why is it so ? On the consumer portal you cannot even lodge complaints as on whatever heading you click i.e. consumer world home or hp gas home or hp gas transparency or complaints, only the matter consumer details is seen you can't do anything. Will someone help and look into this matter as to why the portal is of no help to us and why as and when I book the cylinders the same are cancelled. Look at the booking history yourselves will see how I am facing difficulty in receiving cylinders for cooking.