In NEED of a mechanic

So found out this morning the heater in my car is not working smh. As in no air whatsoever is coming out of the vents. I literally just had to have a new transmission put in. And still have more repairs needing to be done such as an oil leak in the front....Anywho, I really need someone to help me fix the heater. It's not needing coolant bc when I got the transmission fixed they poured some in for me. I think a wire is loose honestly. If someone could please be of assistance I would definitely appreciate it. - xo Deja