Giveaways are a lovely thing to do. They are, however, not a lovely thing to do when you have already agreed on a trade with somebody who has sent you part of the payment in advance.
I hope you realize the moderators can just go into your transaction history and take the bells away. (Dont worry though the bad guy never wins). And with that I'm done.
If you make a deal with someone you stick too it. You're not ''cool'' or 'hard' doing this, all is does is make people dislike you and lose you friends.