The Payment Cart link is used for returning to a payment transaction that you started but did not finish. For example, during the payment process you can click an Account # link to view details about an account. To return to where you were in the payment process, click the Payment Cart link.
When viewing the payment cart, you may see a Pay More Accounts button on the title bar. Click this button to select additional accounts to include in your current payment.
Note: Your payment cart is always empty unless you pick an account to make a payment for, start the payment process, and then leave the payment process.