If a Wash Book has a low balance or no balance, when the alert quantity is met, the ICS payment terminal prompts the customer to recharge or reload their wash book.  

NOTE: There is a setting to add or remove the ability to recharge a Wash Book at an ICS payment terminal. There is an Alert quantity setting which is configurable.

1. At an ICS payment terminal or POS with a card reader, swipe the Wash Book Card or scan the receipt to redeem the wash.

-or-

If configured, the customer can select the Redeem Book button from the main options.

2. When the balance of washes remaining is at or below the configured amount, the ICS payment terminal offers to recharge the card.
3. Customer makes a selection.
4. The Wash Book selection gets added to the end of the previous washes on the Wash Book. 
   (FIFO - First In First Out inventory for Wash Books. This means if a customer bought a book of 8 basic washes, and then a few days later reloaded their wash book card and bought a wash book of 6 supreme washes, when the customer visits the car wash for the first 8 washes, they will automatically get the basic wash. On the 9th visit, the supreme wash will process until all 6 supreme washes are used.)
5. The transaction receipt prints with the new total of washes remaining.
   Also, if configured, the receipt will also print the Wash Book barcode, and can send the receipt via email provided the customer already has an email address on file before the transaction.