Unable to return?

I knew by chapter 5 that I didn’t want to listen to this set of stories. I didn’t like the story or the narrator. So, on the same day I bought it, I decided to return it. Audible won’t let me return this! I listen to literally hundreds of books on Audible and I’ve returned less than 5 of them, but when I attempted to return this one Audible wouldn’t let me. I wasted a credit!