Your subscription discount is automatically added based on your login. Since you can’t use two discounts at once,  you have to log out and check out as a guest without your subscription discount.  When logged in as a guest, there should be a text field when checking out that states ‘enter your gift card or discount code’. This is where you can enter your code. Then when you put your shipping address in your points get assigned to you. The next time you check out simply log back in.  And remember all orders in the US ship for free after all discounts that total $75.