You will need to close Civilization VI on all other devices except the one you are currently playing on. For instance, you cannot be signed into the same 2K Account on iOS and Mac versions at the same time. This typically occurs when you have signed into the same 2K Account in Civilization VI on multiple devices/platforms within a certain period of time.
If the issue continues, please try reinstalling the game. You may need to try this multiple times in order to get the purchase to verify. When prompted, select Restore purchases.Make sure you have at least 8GB of available storage and are connected to a stable wifi connection. In-App Purchases are not unlocking/downloading *Click the follow button to the right to be updated on Civilization VI iOS*
