You can update the credit card used for billing for your BlueFolder subscription from within the Settings when logged-in to your account. For security reasons you must be the Account Owner to have access to update your payment method.
1) Go to the Settings > Account/Subscription
2) Select Payment Method from the options on the left side of the page. Next click Replace Payment Method.
3) Enter the new payment method details, including billing address, and click Save Changes.
