Lol guys this is what happened. He saw someone offering there skull juggle for an ice cream melee. He didn't want that. But then he saw another guy say trading an umbrella for skull juggle. So he traded his ice cream melee for the skull juggle so he could then get the umbrella. But, it turns out the guy offering the umbrella was the guy who wanted the ice cream melee. (His second account). Therefore, he ended up with the skull juggle and got scammed.
I'm pretty sure staff can't do anything about this and you gotta be careful of the 9 year old assholes desperate for pixelated items on this game so they can stare at them and do nothing but show them off because they're rare and have nothing better to do with there lives.
My advice: Be more careful when trading lol.