Yes. You can request to add products on to any order up until the date of delivery. To request an add on, first open the order details page by click on the invoice number on your orders page. Next click the orange Modify Order button to the right of the order number. Next, click the green Add Order Item button and select a product and quantity from the drop down. You can add as many items as you like. When you are finished, click the green Request Modification button. This will alert the seller to your order add on request. Remember, the seller must still confirm the add on request, it is not guaranteed that a seller will be able to accommodate late add ons.
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