Simple as ABC

Last week Mrs S asked me to reserve a book via our library's on-line catalogue. The site noted the book was awaiting return at another branch, but it would be sent to our library on its return. The reservation was in my name.
Yesterday I popped into the library to check if they had a copy. They said no, but they could reserve it. I agreed as I had Mrs S library card. 
Today Mrs S was emailed to tell her that the book was available to pick up. I checked the on-line catalogue, which states I am the first in line for the book.
Have I got a case for claiming discrimination?