Of course they should apologize. I guess that is another symptom of my not having much confidence, or self esteem for that matter. My post may have come out like I thought I did something wrong.

My issue is that even though I know that I am being reasonable and they are not, I'm still petrified at having to talk to them about it. It makes no sense, it's not rational. Unfortunately, recognizing this hasn't helped me to not be scared of confrontation. This is why I wish I was more assertive, so that I could confidently (and calmly, without dissolving into tears or something) let them know that they were in the wrong.

Thanks for reading and affirming that I had no realistic way of knowing or being able to work. Even though I said I know it was their mistake, it helps me to know that someone else sees it that way too. (My husband thought they were crazy when I told him and pretty much suggested me quitting before I went there - this is kind of a last straw thing among previous incidents.) I actually don't think they will apologize because the whole last minute schedule changes thing and double-triple-quadruple shift scheduling is standard operating procedure for them.