where to report people who cheat my gold

hi staff,
i just wanna report a person named Headshocker who cheat my gold for buying primordial saronite, around sever time 1:56pm today 26/11/2017, my id is Dkisbest, realm icecrown, i am not sure where to post this kind of post, if wrong place, please move it to decent place.

Headshocker sell 15 primordial with 13k gold at global channel, and i wanna buy it, so we make a deal, first time we trade that he put 15 primordial on the trade box, and then he cancled, after that he ask me will buy all, i say yes, so we trade again, but i didnt see this time he only put 1 primoridal, but i click done and paid him 13kgold, after that i check my bag just 1 primoridal, i ask him give my money back, but he ignore me immediately, and i cant wisp him anymore, so i want to know such the case the person will be banned and give my gold back?

thanks

you need to report players by opening a ticket in-game.
For these kind of reports you need screeshot or video as proof tho

Unless you have proof as skullbashat said, you are toast.

You have to have some common sense not to fall for this ****...