Only Superusers can do this.
To update the payment method for paying your site's invoice, follow these steps.
In the side menu, click Business Tools > GoMotion Invoices.
To the right of the Current Payment Method, click HERE.
To add a new payment method, click Add New Card or Add Bank Account.
To update an existing payment method, click the Update/Replace button, and then click OK to confirm.
Fill in the payment details. Click Copy From Account Info to speed up the process.
If you have more than one card/bank account on file, click Use for Fees Associated With Your Account by the one you want to use, then click Save Payment Setup.
Note: If you need to remove a credit card or bank account, please contact Support.