I came home on thursday and they were to deliver oxygen on wednesday. I never paid any attention as the tanks are in another room. Sunday nite about 2 in the morning I woke up short winded. I checked the tanks THEYwere empty. I called emergency supplier and they delivered 02 about 4 in the morning. not good. Come to find out someone did not like my enter way and they did not fill the tanks. I checked on it and the air gas people called the main office and told them. They screwed up and did not notify me. i called them and they said "we dropped the ball" I have a lawyer working for me on a accident case and I plan on calling him Monday morning and seeing if there is a case here. i went thru hell waiting for them to bring the 02.