Sign into your account on Duncraft.com. Go to "Your Account" page and click on "AutoShip Orders" in the Account Management section. Click on "Edit this order" and go to the seed selection you want to change. Enter the new quantity and click on the orange "Update" button. Use the "Delete" button to remove that seed choice from future orders. Changes made before 11:59 PM ET of the day before your next ship date will be applied to your next order. Changes made after that time will not take effect until the following order.