Was I hozed in the classifieds ..?

To me, a set is two.
"Wow! that lady has a nice set of (fill in the blank)"
That would be the way i look at it.
Bottom line, he sent them, you paid and if it's a miscommunication, maybe try to work it out with him or chalk it up to experience to be more thorough when you buy something and ask more questions.
Billet made stuff isn't cheap, i think you got what you paid for.
Just my 2 cents.