I've seen it happen a few times before- I apologize if it doesn't work though, I may be wrong. I think you go to "Empty Closets Help and Feedback" and make a post with the name you want to change it to, and the staff eventually will change it for you.
Hi there! Just post a thread in the Ask The Staff subforum specifying what you'd like your new name to be and we'll get back to you there. Thanks!