If you feel that you were wrongfully banned, you can appeal your ban here:
zarpgaming.com/index.php/forum/appeals
If you feel that the staff member who banned you was not handling the situation correctly, you can make a report against them here:
zarpgaming.com/index.php/forum/report-abuse
Complaining about it here isn't going to get anything done, you will have to make an appeal / report and follow the appropriate template if you want anything to happen regarding this.