I was informed that they would have to order the book from elsewhere
Is that a problem to order it another way?
I guess that I have to wait for the book longer.
That is frustrating.  However, patience is a great trait to have and practice!
I'm not patient enough. I am going to look for it somewhere else.
Think of the lessons practicing patience can bring you if you wait for your book. You might appreciate having it more if you wait.