To find your receipt, log into your account here and click on your name in the upper right hand corner. Then choose "Account Settings" from the drop down menu. On the next screen, click on the "Billing" tab. Then scroll down to "Order History". There you will see all of your orders and receipts. Click on "Print Receipt" for the receipt you would like to print.
If you have any trouble finding what you are looking for, please contact our customer care team and we will be very happy to email you a copy of your receipt. You can reach us by email at support@hippoeducation.com or by submitting a contact form on the site.