Serious Doucheonmandick move. That was someone else's by what you said. Imagine if it happened to you, that is all you have to do and then you'll know. If you can sleep at night knowing you are using an employee's honest mistake as a way to cover up your own greed, then by all means keep it. I would be pissed if my special edition of Uncharted 3 (the only "special" release I have ever bought) had been given out by someone's fault and another's dishonesty.