How Do I Change My Address?
You can go to the 'My Account' page and in the 'Addresses' category you can change your shipping and billing address. There is also an option to edit your address when checking an order out.
If you would like to change the shipping address on an order that has already been made you can cancel the order and remake it after editing your address in the settings page.
(Please note any points used on the order can take up to a day to be put back on your account)