I was gonna wait until server up but after reading your post about it still not working, I went ahead and tried it out. I got logged into Account Management fine, and I was able to switch between sub accounts fine. I went ahead and reactivated my inactive account and it worked fine too. Everything is working fine for me. I'm logged into the game with my renewed account and my Castle is somewhat worn, so I should be fine after a server up or two. If something goes awry with my Castle refreshing I can atleast trade it off to another account at this point. I'm thinking it'll refresh fine, but boy was I worried earlier when I couldn't even get logged in to Account Management. You might want to delete cookies/history and reboot to see if that helps you out.
Castle refreshed fine even before a server up, fastest refresh I've seen yet!!