I've recently applied for the character creation, and my name was "Sirca Prost". It was declined, stating misspelling and/or no capital letters. I don't see anything wrong with the name, unless I have to have such a common name like ex; John Smith.
There's no way to be sure exactly why it was declined without the person who clicked the button giving more detail. But I will say that it's fairly easy to click the wrong decline reason by accident (I've done it myself a few times) especially if your mouse is a little jittery.
I don't personally see anything wrong with it. Will it let you reapply with it?
We're only human, and mistakes do happen.
"May the Grace of Ara go with you, and His Vengeance be wrought upon your enemies."