To turn points into a reward, you will need to log into your account, then click on the launcher in the bottom left of the website (purple icon - Rewards) to open the rewards panel.
If you don't have enough points to redeem, you'll see a progress bar on the right, next to the reward name.
If you do have enough points, there will be a Redeem button.
Upon clicking redeem, your will be taken to a page that shows the coupon code with a button to Apply code which will automatically apply that coupon code to the checkout. You can also copy and paste this code at checkout.
To redeem points on Checkout Slider rewards, you will need to use the points slider to select the amount of points you would like to spend, then click Redeem:
Based on your settings in Notifications, you may also may get an email with the coupon code for your record. The code will also be stored in your rewards panel under the Your Rewards section at the bottom.
Once you have redeemed your points for a reward, the reward will remain in your account until you decide to use it on a purchase. Points are not automatically returned to your account if a reward is redeemed and not used.