Indian Oil Corporation [IOC] — delivered a cylinder with past due date

Delivered a cylinder with past due date. On dec 8th, delivered a cylinder with due date of c-17 (September 2017). When is asked him to change it, he refused and asked me to come and change in person. As i'm an woman, i couldn't lift it for long distance. So requested him but he refused to change it. Then i called gas agency and waited for one week. It started leaking, so called gas agency again. They sent a mechanic, but he did something and refused to change it again. So please help me to get rid of this issue. If something happens, it will affect the houses nearer to my home. So please work on it and help to get it resolved