Yeah, I wouldn't even bother. If they can't even be sure about what it is, and can't be bothered to take a pic, then I couldn't be bothered to pay them.
I drove 35 miles once cause I was told there was a 3.55 XJ D44 I could have for $150, and it ended up being a 35.
Also, how can you rebuild an axle without knowing what it was?