Apparently this is a known issue. They are working on a game-wide fix, but in the meantime, they are trying to manually fix this for each individual user, so it is taking them a while.
From this forum:
Originally Posted by Ziffer Last Update: 12/20
Since 11/23, some players have reported losing the Duke's Quest Line
after going OOS and are unable to restart the Quest Line to finish it.
Status: The CastleVille Team is actively investigating and addressing.
Workaround: Please contact Customer Support for a fix.
Link to bug report thread:
Here are some things that they suggest trying:
Known Issue: http://forums.zynga.com/showthread.php?t=1243568
Getting your game to work might be just a few steps away. Before
posting a bug report, try out these trouble shooting tips.
If you have done all of these and still need to post your bug report
please provide the following, whether you create a new thread or post
in an existing one.
- Have you tried clearing your cache and reloading the game?
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- Please describe the issue. If you are receiving an error please provide as much information as possible regarding what you were trying
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