Suspecting Joshua123 of scamming.

Link to scammer's Sythe profile:http://www.sythe.org/member.php?u=344571
Briefly explain the trade:I was selling him a account, in total I would receive 70M.
He told me he could pay me 45M, the day I sold it, and the other 25M yesterday (sunday).
I contacted him on RS, and a 3rd party told me he bought the account on Sythe and didn't knew anything of owing me 25M.
I thought he was faking, and did some searching, turns out he sold it to a third party.
However, we both agreed on the fact that if I didn't receive the other 25M within a week, I would recover the account and he could get it back whenever he pays me.
Now it's sold to a 3rd party, I wasn't sure if it was alright to recover it so I posted in the Sythe support centrum, and Quatakai told me I should post a report.
How they scammed:He did not pay me the other 25M, instead he sold it.
Proof that you were not talking to an impostor:We vouch'd.
Trade screenshots:/

Reason I got no screenshots is because I caught a virus and threw my OS from my pc.

This 3rd party is trying to sell the account, so it's urgent that this gets solved before a fourth party is involed.

 

Can't do anything without proof of anything