From what I heard, and idk if this is true, but he may have been or was part of the Santa thing that happened on Twitter.
You make the application thread here: http://itsjerryandharry.com/forums/staff-applications.30/ You read the tutorial here: http://itsjerryandharry.com/threads/tutorial-how-to-write-a-staff-application.59040/ Keep in mind that if you need help, make a thread in the "Help" section. :)
You can make a ban appeal. All of the information you need is found here: http://www.itsjerryandharry.com/threads/tutorial-how-to-write-a-ban-appeal.20/