You can see your current balance of Acorns on the Store menu. 
 
If you purchase Acorns from the in-game store, your balance will be updated by the amount you purchased and the Acorns will be available to you. This shouldn't take more than a couple of seconds, but if it's not the case, please make sure that the transaction went through in the transaction history of your system. Here's how to check your translation history on Ubisoft Connect, PS4, Steam, Nintendo eShop or Xbox One.

If the transaction shows up in the history, please allow some time for the balance to be updated - in edge cases it can take up to 24 hours.

Of course, our teams are available if you have any questions or concerns.