Like Candangoek said, you can turn back for your name after the waiting period...
My cousin sent an email asking about nicknames, here's the situation:
His nickname is like "Example example", with the second word without capital letter... he sent email asking if they could change only this letter, and someone asked that he would need to change for a different nickname, wait the time and go back to his "goal name", which is the same as before, but with correct capital letters... hope you understand