HMS Home Warranty waiting 3 weeks and still no furnace Florida

call on October 30i called  to report my furnace was out was on the phone on hold for 45 minuets till I could talk to someone that was around 3:30 they called someone & told me he was on a call & would call me soon, by 8:30 I was on the phone again for 45 min. Wait to find out what was going on cause no one had called me. The called a company called DSE Mechanical & said they’d be out Oct 31 between 2&4 that a lady named Linda would call to confirm. Linda a hadn’t called me by noon so I called her. She informe that that was wrong & would be their on the 3rd. 3 men came & sai they would turn in findings & put an emergency on it because I have 4 children in the house. Well needless to say here it is almost 3 weeks later still no furnace I’ve had to go buy heaters & call the plumbers & they won’t call me back & spent 55 min. On hold today before someone answered the phone a the warranty company to find out they still haven’t got any done so I ask her if She could email me the dates & times I’ve called them. We’ll see if that happens . I’m at my wits end what else can I do? Plus they have locked out tagged out my furnace .