On rare occasions, a purchase may not be completed successfully due to connection errors or some other unexpected problems. In that situation, please try restarting the game, which will normally finalise any pending purchase.

If restarting the game doesn't help, please check your Purchase History to confirm whether you were charged. You can review your Purchase History within the Google Play application, or in other ways described here:
https://support.google.com/googleplay/answer/2850369?hl=en

If you were charged for a purchase but didn’t receive the purchased items, please contact Support through the ‘Contact Us’ button. Let us know which item you purchased, the order number (starting with GPA) in the Purchase History and the username of your Horus Heresy: Legions account. We will aim to answer and provide a solution within 48 hours.