You can manage your Recurring Payment Schedule from the My Account Summary tab. Navigate to the bottom of the Account Summary page. Select "Manage" next to Automatic Payment under the Billing Information Section.
You can also manage Recurring Payment Schedule from "How can we help you" dropdown on the Account Summary page. Select Sign up for Automatic Payments. Then select Recurring Cards and a message will display stating that you're already enrolled in Recurring cards with a link to "cancel your recurring payment plan." Click on this link and you will then be taken to a confirmation page. Select "DELETE THIS RECURRING PAYMENT."