IOC Gas Cylinder — Indefinite delay in delivery of gas cylinder

I am consumer of Indian Oil Gas under Consumer No. T-655 with dealer Trimurthi Gas Service, I could not lodge the refill complaint on any of their given phone nos. as either the nos. keep in ringing nobody responds or not available every time. Since I could not go personally to their godown to book the refill the only way left with me is phone. I am facing this problem since many years with this dealer no improvement. I expect by submitting complaint through this website some sort of relief for my grievance.