AC blower works when it wants to 2018 Kia Soul

What is your question?

have a 2018 Kia Soul and the blower comes on when it wants to .. started doing it after I hit a bump..it cut off then came back in then after that it works when it wants to.. dealership charged $100 to tell me it was the temperature control switch ($516 for the part and $50 to install) so I had that replaced and it still didn’t work. I ordered a blower motor last night for it because it hasn’t worked for 6 days now and suddenly on the way home from work tonight it started working.. what could it be? I’m out of a lot of money already but now I’m really thinking I’ve also wasted my money on the blower motor with it starting again tonight..edit: it stopped working again the next day..

What makes this problem better or worse?

It blows when it wants to and stops when it wants to

How long has your 2018 Kia Soul had this problem?

About a month