You claim that you didn't know it was a no-no. Except that in the rules you were required to read and acknowledge, it states: "If you come back, read the rules. Every word. You will be banned if you fail to do so again."
That is the one zero-tolerance thing on our server, for legal reasons (not moral reasons) and you violated it. You then came back under an alt today, and rather than messaging a mod to discuss this, you acknowledged the rules a second time. The rules that include "Trying to evade, look for loopholes, or stay borderline within the rules will be treated as breaking them." You may have had a chance before you did that. You definitely do not have one now.