Your ban was extended to permament because you tried to ban evade on three different steam accounts STEAM_0:0:831919947, STEAM_0:1:831807496 and STEAM_0:1:860689626.
What's concerning to me is that there is no mention of this in your appeal.
Could you explain why you violated global rule #11 "Under no circumstances may you use an alternative account, VPN, or another person's account to circumvent a ban."
On three seperate occasions?