You can add a delivery address to your account by logging in and visiting your account panel here: https://www.colourcalendars.com/user_account.php
At the very bottom of this page, we show some ‘Boxes’ which are a list of various things associated with your account. One of these boxes is titled Delivery address:
Click this box and you will be able to add a new address, as well as see any current delivery addresses saved in your account. You can also ‘Edit’ and ‘Delete’ any of the saved addresses from this section.