We had our HVAC system inspected by them about a m...

We had our HVAC system inspected by them about a month and a half ago. The tech even made us replace our furnace, saying there was a 'crack' in it. Didn't really have to use our heater until this weekend. I paid close to $1500. This is the coldest weekend in this year, and the heater is not working. It's 60 degrees in my house. My husband calls them and is told no one can come until 2 days later. I call them and they tell me someone will come today but they can't tell me when. It's been hours since that call. As far as I can tell, they are crooks. They are about to lose my business.