Scammed by ingame imposter

Scammer's profile link:
King4RS.com
Explanation of the trade:
I was selling him 1B , we made small trades and on the last trade i traded his imposting account. Before he typed his name he traded me with a similar name.I waited for decent amount of time,
i saw him typing something and then deleted his message. So I just asked "u"? and he answered "yes" and i accepted the trade. After that he told me it's not him. I've had this happen in the past with a different site
after that i always waited on discord confirmation that i'm trading with the person. After trading a lot of trades i do not check for the ingame name often ,but rather ask for confirmation in the discord.
I just like to think that it's very likely him since the account did know the exact time his turn to trade. Also JimSky was very quiet during trade that i waited for a decent time,he was typing something then deleted. And after saying "yes" i did accept the trade. After accepting he instantly said that i did not trade him.
Amount scammed: 150M
How they scammed: Said "yes" to the question "u"? while being in a trade, And he said it was not him afterwards.
Proof that it's their Discord: Imgur
Discord ID + Unique Discord ID: Jimsky88#1721 402315258007650304
Other relevant trade screenshots:
https://i.imgur.com/zPZ202L.png
I have the trade recorded,but i don't wanna show it on a public forum since it has my rsname,I can send a gif in a PM

 

Unfortunately when it comes to big gold sites and traders on sythe they get a lot of imposters follow them around ingame, What normally happens is that the imposter will trade them pretending to be you and will trade you on their second account (which has a similar name to theirs)

Once you put up 150m for example like you did in your trade they put up 150m to King4rs and that's why they confirmed the 150m was them. Unfortunately we can't hold them responsible for this because you traded the wrong name ingame.

I'm going to be closing this and editing the title to imposter scammed however if you have any questions add my discord:
veng#0001
263411734465740801

 

@King4RS.com After speaking to another staff member you will be getting a Trade with caution for poor trade practise. The customer had traded you multiple times so you knew what their rsn was but you still confirmed gold on discord it was you in the trade when someone else had traded you.

Twc is appealable in 30 days or removed immediately upon repayment of the 150m to @Yellp07

In the future if you notice there are a lot of people around you please make sure you warn your customers about the risk of imposters and to be careful they don't trade one by accident. Always confirm both your runescape name but also the customer/sellers name so you don't trade the wrong person either.