1. Full name of the customer on the credit card
2. Full credit card number
3. Expiration date for the credit card
4. CVV (security number)
To perform the refund, first use the OPEN ITEM function from the sales screen.
When you get the OPEN ITEM window popped up, fill out ITEM NAME and PRICE. Uncheck all TAX TABLE and Kitchen printer as well and press ADD
Once your REFUND item has been rung up, press CREDIT (or PAY > CREDIT)
When your credit card machine ask to INSERT/TAP/SWIPE credit card, start inputting the credit card number using the machine's number pad
When you are done inputting the credit card numbers, use green button the process the next step.
The machine will ask you couple more information such as expiration date, CVV, address, zipcode, etc.
Input the expiration date and CVV. You may skip address and zipcode if you have not collected these information, by simply pressing green button once trans.