Log into your Watercolor Action account.Hover the mouse over your ‘My Account‘ at the top of the screen.Click ‘Address’ from the drop down menu.In the ‘Address’ section you will see your billing details you have entered previously Click the ‘Edit‘ button and enter your new billing detailsClick “Save Address“.Please note: fields with * are required.Your new billing details has been saved and will be used for future purchasesYou can also update your billing details in ‘Checkout‘ page once you make any order