That's bonkers, meara! Unless the price for the part includes the labor and everything for the repair somehow? Which doesn't seem like a sensible way to do things, but it's all I can think of.
My mom's primary PT came to the house yesterday, so she has some more exercises to do. He asked how the fall happened and she told him the whole story and he said something like "oh, it was a freak accident" which was gratifying and then my dad pointed out the hole in the wall from the top of the stairs which made him say "Holy cow" which was also gratifying. Now that everyone has seen the hole and taken pictures, Mom does want to fix it, btw. Maybe still a plaque, we'll see.