CASH REGISTER MALFUNCTIONS
The cash register, like any other piece of machinery, can break down. Most ships normally have a backup cash register to replace the broken one while it is being repaired. However, if a backup register is not available, you should take the following steps while the register is out of order:

. Keep a cash sales log and record the total dollar value of each sale. Use an adding machine to total the value of merchandise bought by each customer. The log will include columns for item sold, quantity of the item sold, unit selling price, and extended selling price.
. Use an adding machine to total the log and balance it with cash on hand at the end of each business day.
. Retain the daily log and adding machine tapes in the same manner as cash register tapes.
. Enter cash collected in the Cash Receipt Book, NAVSUP Form 470, Cash Register Record, NAVSUP Form 469, and the ROM system.
. Collect all cash including change funds daily.

REFUNDS
All sales made in the retail store are final except that merchandise determined to be defective may be returned for refund or adjustment under the following conditions:

. When merchandise is guaranteed by the manufacturer and returned within the warranty period
. When merchandise can be reasonably assumed to have been defective at the time of sale and is returned within 30 days of such sale

All refunds must be approved by the ship's store officer before the retail store operator can accept an item and give the customer a cash refund. Process the refund on an Overring/ Refund

Voucher, NAVSUP Form 972 (fig. 2-6). The voucher will include a short description of material returned and will be signed by the ship's store officer, the retail store operator, and the customer. Once the store operator receives the signed refund voucher from the customer, a refund can be paid out of the cash in the register. The store operator will then place the overring/ refund voucher under the cash tray until daily collections. The voucher will then be collected by the ship's store officer or cash collection agent. The amount of refund will be reported as a separate entry in the Cash Register Record, NAVSUP Form 469, and the Cash Receipt Book, NAVSUP Form 470. The voucher itself will be attached to the applicable page of the NAVSUP Form 469.

OVERRINGS AND UNDERRINGS
Some cash register operators, it seems, never make a mistake. But what happens if they push the wrong button, or the customer does not have enough money to pay for the purchase? When an underring occurs; that is, you didn't charge the customer enough, you can correct it simply by ringing up the difference between the item's actual retail price and what you charged the customer. For example, the customer purchases a radio for $23. You, however, mistakenly ring up $13. This problem is simply corrected by ringing up an additional $10 ($ 23-$ 13). This type of cash register error requires no authorization to correct; however, overrings require the signature of the ship's store officer before they are valid. An overring occurs when:

. the amount rung up on the register is greater than the price of the item, or
. the customer does not have enough money to pay for the purchase.

Once operator an overring occurs, the sales outlet must prepare an Overring/ Refund

Figure 2-6.- Overring/ Refund Voucher, NAVSUP Form 972 (for refunds).

Voucher, NAVSUP Form 972 (fig. 2-7). The sales outlet operator and the ship's store officer will both sign the NAVSUP Form 972, and it will be kept under the cash tray in the register until daily collections are made. At the time cash is collected, the person making collections will attach the 972 to the applicable page of the Cash Register Record, NAVSUP Form 469, and make a separate entry on both the NAVSUP Form 469 and the Cash Receipt Book, NAVSUP Form 470