Banned for 3rd party softwares (repost)

I will start this off with saying I have and never will cheat in League of Legends. Cheating is for noobs who cant get good themselves. The only 3rd party thing I have used was a skin modifier which is cosmetic and client side (was not mklol or whatever it is called). The skin changer itself was allowed by a Riot member and at the time of my ban I wasn't even using it because I just spent 25$ to get Lucian Project Lucian and 2 rune pages. I guess Riot thought I was cheating because I haven't played Lucian on that account before but I have on the PBE and on different accounts. And at the time of the ban I was Silver 5 80 LP with a 48% win ratio, which I don't even know how that even makes people think I was cheating. Some of you will say this ban is justified because I technically used a 3rd party program but it is 100% cosmetic and doesn't give any strategical advantage in any way. I hope you guys can understand Riot has made a mistake in banning me and would like to be able to play on my account again. -I Am Nachos.

I already tried submitting a ticket to no avail as 2 have already been denied and have just sent a third one. Riot has said that my ban wasn't for the skin editor but some exploit cheat or hack used to gain an advantage which I wasn't even using any.