Now there should be a new card with no punches on it. This means that the customer purchased the prepaid card, but has not utilized the service yet and proceed by clicking "Checkout".
Then select "Finished" to complete the transaction.
Once the customer has used the service that they prepaid for, you can mark the card using the drop down menu or by clicking on the punches and proceed by clicking "Checkout".

You can mark the card by selecting the option on the third menu or by clicking on on the punch. If you click on the punch, a pop-up will appear. Select "Add Item"

When the customer has used up/completed their prepaid card, you can then redeem the card. It will state under Unredeemed Rewards that they can redeem the card. Select Checkout to continue.

You should now have a Reward Redemption pop-up. Check the box for the reward and select "Redeemed Selected Items" button.

It will show on the next page that the item was redeemed and you can finish the transaction.