Growth Package is designed to help lower level Castles accelerate their development.
Please note that once you have purchased the Growth Package, rewards will only become available for collection on levels 5, 10, 12 and 15.
To collect the Growth Package items, you must press an icon appearing on the right side of the screen and collect the items as on the picture below:
In case you failed to collect the items on a certain level, you won't be able to collect them after your Castle develops onto the next level.
Ex.) you forgot to collect the reward on level 5, and upgraded your Castle to level 6 → items are not available at level 6 anymore.
Growth Packages cannot be refunded according to the Terms of Service.