Coupon codes and discounts must be entered on the right hand side of the Checkout page. You will need to click the "Add gift card or promotion code" arrow and you can enter any promotional code in that box. This is located on the right side of the screen in the "Your Order" section under where it says "Order Total".
You must click the grey "Apply" button to the right of the box in order for your coupon to be applied to your order. If it is applied correctly, your order total on the right of the screen will update. You are not charged until you click the red "Place Your Order" button on our final review page.
If you're still having trouble, please email the coupon code to [email protected].