I really appreciate everyone's input! To be honest, I would feel too bad trying to get a refund, it was an honest mistake by the seller. Steve Cyrkin, I was thinking the same thing, the woman Sharon wrote out to Hollywood actors and actresses for autographs which again I figured I'd take the risk. I'll frame it and hang it in my bedroom and be happy that it's at least a secretarial signature :)
Consider, it's a seller's responsibility to ascertain authenticity before offering a piece as an original autograph. Their intentions, good or bad, are a moot point as the end result of either intention are the same. You didn't get what was advertised and paid for.