You've purchased JOI, you signed up for a subscription, you've earned points, now it's time to redeem them for some discounts.
Here's how you do it on a desktop:
Step 1 - Log in to your account by clicking "My Account" at the top right of your screen, then select "Home".
Step 2 - Once logged in, you'll be taken to your account screen where you'll see your points, rewards history, access to your subscription portal, and order history. Click on the blue "Redeem Points" button.
Step 3 - Another widget should appear with your redemption options. Select the offer you'd like to redeem, click "redeem", and copy the unique discount code.
Step 4 - Return to the screen with your purchase history and click on "View Subscriptions" within a blue button at the top.
Step 5 - You are now in your subscription portal. Click on "Subscription" under "Edit Next Shipment". See screenshot:
Step 6 - Click on "Discount" within the menu on the left hand side of the screen.
Step 7 - You're all set. You code will now be applied to your next subscription order.
Here's the process on a mobile device: