Oh no! Sorry you've run into this issue!
In-game purchases go through to your account instantly, however occasionally you may experience a delay in receiving them, in which case we advise waiting a few minutes.
If your purchase went through (you have a receipt from Apple/Google) but you have not yet received it in-game even after waiting a few minutes, please contact our support.
Please include a screenshot of the purchase receipt to help us resolve your issue. The receipt should be in your email, but if you can't find it you can follow the steps below:
Android [Google]
Go to payments.google.com
Select Activity
Select an order to see your receipt. It will pop out from the right. Be sure to capture the whole receipt!
You can also click here for more detailed info on how to find GooglePay info.
iOS/iTunes [Apple]
Go to reportaproblem.apple.com
Sign in with your Apple ID and password.
A list of your recent purchases will appear.
You can also click here for more detailed info on how to find Apple Pay info.
These details will provide us with the necessary information to further look into this for you.