@Mky-dN Admins have admins role next to their names, like how I have my contributor role for donating. Also yes he is correct. You ignored your first ban, which is 7 days for everybody. 2nd time, you were caught breaking the anticheat policy, is extended to 360000 days. Also creating new accounts will only extend your ban even longer.
https://plutonium.pw/docs/anticheat/
Yes, all bans are final and the plutonium team does not do ban appeals, so you're out of luck. I have not seen the plutonium team unban someone.