Sadly, no. You can change the contents of the order only in the first step of the purchase process. In the shopping cart, under each item there is a "Remove" button that allows you to delete the unwanted product.
After the confirmation of the order, unfortunately it won't be possible anymore.
Once your order is placed and imported to our system we have no ability to edit it or make any changes for you.

However, if our warehouse has not yet packed your products, you can still cancel your order within 15min after purchase and place a new order.