If you made an In-App Purchase and SEE a "Not Downloaded" message please refer to this thread here: viewtopic.php?f=4&t=17
Hi All,
Sometimes In-App Purchases are made but are not synced to our servers. It happens rarely but is possible, and we apologize if this has happened to you. We do care deeply about our users and keeping promises, so please reach out to us and we will do our best to resolve the issue.
If you believe this glitch has happened to you, please PM me here on this forum with your username, a screenshot of your transaction (instructions here: http://support.apple.com/kb/ht2727), and the name of the item you tried to purchase.
Thanks,
Alex