Can I apply a promotional code to a past purchase? Sean May 17, 2019 20:55 Updated Follow We are unable to apply promotional codes and discounts to past purchases. Related articles How can I use a coupon code online? How do I check on the status of my order? Order Shipping Info Closed cell, open cell, sealed cell; what's the deal? I find that I'm slipping on my new equa® hot Yoga Mat. Do you have any suggestions? Comments 0 comments Article is closed for comments.