I have had 37 lands for 2 days now. I hav more then enough gold to upgrade to level 3. I have reset the app and reset the phone several times. Still the upgrade button isn't highlighted and I can't upgrade it, any other suggestions?
try deleting the app and reinstalling it your account will still be there it's linked to your udid and if that doesn't work email the devs at support@athinkingape.com
Get one more land and try again. Another crack in their game. It's normal when they're upgrading so many things at once
I encountered the same issue. what worked for me was to link my account to a facebook and upgrade castle via computer rather than phone. hope this helps.