Unhappy buyer .What to do ???

Caveat emptor (pron.: /ˌkæviːɑːt ˈɛmptɔr/) is Latin for "Let the buyer beware"[1] (from caveat, "may he beware", the subjunctive of cavere, "to beware" + emptor, "buyer").

Uhhhhhhhhh? Chinga tu madre, translation: well I'm sure you've heard that before. Lol! That's what I would have told the buyer.