When I worked at EB Games a lady came in with an expired advertisement for a discount on a Dragonball Z game. She claimed she bought it when the deal was going on. She had the game case but there was no game in it and she didn't have the receipt. She claims she was never given the discount which was clearly a lie since our system automatically discounted games that were on sale so we didn't have to do it manually. I refused to give her any money on the grounds that I had no idea where she bought it or when. She had no proof that she had purchased the game any time recently and she didn't even have the game with her. She left pissed off. My spineless weasel of a manager told me I should have just given her the money. I told him I wasn't giving a dang thing to anyone who was obviously lying to scam money out of us.
Good for you! If only more people were like that maybe we wouldn't have such a pathetic lazy moneygrabbing society.