Hi, I'm guessing your character's name was changed because it violates the
naming policy. It prohibits (among other things):
-Names of religious, occult, or significant historic origin (e.g. Jesus, Allah, Satan, Stalin).
-Names from popular media. These names can be either fictional (e.g. Rambo, Darthvader) or non-fictional (e.g. Garth Brooks, Pierce Brosnan, George Washington, Michael Jordan).
-Common words and phrases that would not be found in the time, place and setting of EverQuest (e.g. Switchblade, Phaser, Toaster, Cannabis).
Maybe the name was an issue because Christ is a religious figure and/or Jesus Christ Superstar is from popular media. Sirken said they'd contact you so you could pick the name, though. Did they not do so? If so, hopefully they'll let you set it.