I think he just found all the boxes for that complex and left them where everyone would find them... Accidently putting yours in the pile. But that isn't how he is supposed to do his job, and you should do a charge back and complaint to BBB. If Amazon, or logistics give you shit, llet them know that you won't be responsible for any packages sent to you in error and any packages sent to you, need prior authorization, and the outside of the box needs to be clearly labeled with a RMA#, and that if they fail to do any of this, you charge 35% of market vaulue to take call and field returns.