The receipt is emailed to the account used to make the purchase soon after the purchase is completed.

Your invoice purchase should show the Order ID (Apple invoice) or Transaction ID (Google invoice), the name of the app, and the name of the package that you bought.

(See the example picture)

If you can not find it in your email, please go to this Apple/Google link to search for it online.
*For Apple
*For Google
(You may need to be required to sign in)

Please note that we can not accept bank statements or SMS alerts about money withdrawals.