To make a payment online, click on this link and follow the steps
Log in using your email and password
Select "My Account" from the top naviagation bar (top right)
Select Parent Portal
Select the Shopping Cart icon to add the balance to your Shopping Cart
Select Payment Option
Once you are ready to process the payment, select "Checkout"
Verify your billing address and payment information
When you hit Complete Order, your payment will be processed and a receipt will appear