Invalid 76561198079852253 scammer tag...

Hello every1...
I noticed last month that i got a scammer tag,while i was searching at steamrep some guys...
So i checked out why did i had that scammer tag.It appears that it wasnt for no reason,but the reason was ridiculus..I traded a commander's set with a guy and a wuldastron with modifier for a kantusa..The problem is that back then i was new to the trading community and didnt knew what modifier was..i thought strange= auto modifier..Anyways after we traded and i got kantusa,the guy told me that the sword hadn't any modifiers as i have told him,so i asked him if he want to trade back,he said yes,but then a dude added me and gave me an overpriced offer for kantusa which i couldn't refuse...
Now after that 3 months,i added leon as a middleman,but he told me he won't help me out cauze i got that scammer tag,i asked him what i can do in order to remove that tag,he told me to add again that guy i traded with and give him that modifier,and then make an appeal with ss,so i did i added him and waited nearly 3 week's,i didn't had any response,either he doesn't play anymore or he blocked me....
So i am asking now,WHAT i can do in order to remove that damn tag....

First and foremost, you could read this how-to guide that would have told you that you don't appeal D2T tags on the SR forums: http://forums.steamrep.com/threads/howto-appeal-scammer-and-caution-reputation-tags.58/

If you want to appeal your D2T tag, you have to do it via this link: http://dota2traders.com/forums/appeal-a-judgement.22/