@Linda3447 Do a search on this forum. There is a thread about Evolve- panned by both guests and hosts who've been screwed over by them.
It's really best to stay away from booking places run by these big property management companies. (I don't even call them"hosts") Individual hosts who manage their own places seldom do things like this, as we get penalties for cancelling, while Airbnb turns a blind eye to these big companies' treatment of guests because they bring in so much revenue.
You'll be wasting your time looking for "closure". Your refund was the only closure you will get from either Evolve or Airbnb. Maybe you can post a warning on Trip Advisor or Evolve's review site.
I hope you can find another place for your family to stay.