There are two options for setting up automatic bill payments: auto-pay and payment subscriptions. To view these options, login to your client zone account and navigate to Settings -> Payments.
Auto-pay
For automatic payments using a credit card, auto-pay is the preferred option. Auto-pay will submit a payment for your bill one day before the due date. To setup auto-pay for a card, login to your account and navigate to Settings -> Payments and add a new credit card. Any credit card added to the system will automatically have auto-pay enabled.
Payment Subscriptions
Payment subscriptions are a scheduled payment method. With a payment subscription the same amount will be paid by your credit card or ACH (bank account) on a specific date you define each month.
Payment subscriptions pay a fixed amount each month regardless of any outstanding amount due. With this method it is possible to overpay your bill. For example, if you have setup a payment subscription to pay $49 on the 12th of each month and manually pay your bill on the 10th, the payment subscription will still automatically submit a payment on the 12th. This will result in a $49 credit on your account, which will be applied to any future bill.