I will be denying this report for the simple fact that he didn't do anything wrong here. The only person to cause this to happen was you. There is a trade system for a reason with a confirmation screen, If you feel the need to do /give (amount) and mess it up its on you. It would be left up to kyber if he gives the money back he wasn't meant to get. Also you state the user was a "cop" him being a cop would not change anything since you willingly gave the money and was not forced to.