Unless it's a scam. "You're console can't play new games, but you won't know it because current games all work fine. But new games, they won't work. So just send us your credit card details and we'll send a new Xbox that'll play new games."
Edit: reading the details, if they've sent the credit then it must be from MS and legit. The $500 is only for an express exchange.
Edit: reading the details, if they've sent the credit then it must be from MS and legit. The $500 is only for an express exchange.