The dictionary definition is "trickery." I wasn't accusing him in a legal sense. It was a moral judgement call. Returning the second purchase and posing it as the original can very much be considered trickery, or FRAUD. Did I say he was guilty of a crime and should be thrown in jail? No. Did I say he should FEEL guilty? Yes.
As mentioned already, we simply disagree. I function on a different set of morals then you. No one wins this one. It's just over.