How can I change my default delivery address? You can review your delivery address marked as default, change or add a new delivery address directly to your Address Book within your account, or from the app go to "My Profile". Related articles How do I contact Optimalprint? How can I contact the shipping provider? How do I update my account information or password? My order has been returned to Optimalprint, can you resend it? What if my order is marked as "delivered" but I have not received it?