For our Standard and Professional plan customers, you can self-manage your credit card payment details using the Manage Subscription option, as shown below.
The Manage Subscription popup screen will enable you to manage your details, address, payment method and view your payment history. To change your credit card details, please select the Payment Methods option, as shown below.
In the payment methods screen, please select the credit card you wish to change. Note, that you can have more than one credit card assigned to your subscription.
Finally, select the Edit Payment Method, shown below, and this will then display a screen that enables you to change your credit card details.