Yes, you can add items on your Pre-Order that has not been shipped yet. Please purchase the items you want in a new order. When you do so,you need to write the comment and Original Order No. such as "Add this order to my Pre-Order #-----" on "Order Notes" of shopping cart. We will refund the excess shipping cost when we ship them. In this case, you need to pay double shipping cost temporarily until the release date of pre-order.
Jan 19, 2023