Harry buffalo Trademarks that appear on this site are owned by Harry buffalo and not by CardCash. Harry buffalo is not a participating partner or sponsor in this offer and CardCash does not issue gift cards on behalf of Harry buffalo. CardCash enables consumers to buy, sell, and trade their unwanted Harry buffalo gift cards at a discount. CardCash verifies the gift cards it sells. All pre-owned gift cards sold on CardCash are backed by CardCash's 45 day buyer protection guarantee. Gift card terms and conditions are subject to change by Harry buffalo, please check Harry buffalo website for more details.