Indian Oil LPG — delay of delivery and misuse

Address: Delhi

sir we are using indian oil gas cylinder we are living in keshavpuram area in north delhi.our gas agency name is sukhdham gas suitated in keshavpuram.this agency is at it worse in case of delivery of cylinders.we have gt our cylinder after 12 days of booking. its staff who deliver cylinders misuse the cylinders n sell thm at black.pls ake some hard action against this agency to curb its mischeefs.
waiting for ur response