Originally Posted by
Anova
They have not implemented a rename service yet.
You can however circumvent the problem by transferring your character across servers. If that server already has a character with the same name, you will be given the option to change your name. Keep in mind, you will be locked out of your old server for one month before being able to transfer back. You will also have to pay the transfer costs twice if you wish to return to your old server. It's also noteworthy that renaming your character in this way lets you circumvent the name filters normally in place. I'm not sure if they fixed that or will contact you about inappropriate names later though, so take that note with some caution.