Web: To pay the total amount owed on all accounts, click the Pay Now button in the upper right corner of the screen or the Make Payment button on the home page. You can also make a payment to a single account or partial payments to all accounts. You can pay the total due or change the amount for each account by clicking on Other Amount. After entering the amounts to be paid click the Pay Now button.
App: Tap the Bill & Pay gadget, then tap the Pay button. You can either pay the total due, or other amount.