Can I apply a promotional code to a past purchase? Sean October 20, 2017 18:18 Updated Follow We are unable to apply promotional codes and discounts to past purchases. Related articles How can I use a coupon code online? Order Returns Can I use a coupon code, and still receive Free Shipping? Can I change the color or size of an item I just ordered? Welcome to your Help Center! Comments 0 comments Please sign in to leave a comment.