To redeem your points for a reward, click on the Reward item in the menu.
Scroll down to the reward you want and click Redeem.
Once someone has redeemed a reward, you will see it in the administration menu:
Now select the Validate button.
You will now see an overview of the products to be validated:
Click on the red symbol to validate the product:
In the user view, the employees can see which rewards have been invalidated by the administration in the rewards-store under the redeemed products: