To do this task
Click the Customers menu, and then click Create Credit Memos/Refunds.
In the Customer:Job field, enter the customer name, or click the down arrow and choose the name from the list.
In the lower portion of the invoice, click the first line on the form and enter the item that was returned. Click the next line to enter another item, and so on, until you've listed all of the returned merchandise.
On the toolbar (at the top of the Credit Memo/Refund window), click the Use Credit to drop-down arrow, and then click Give Refund.
In the Issue
a Refund window, all of the information should be filled in for you. You might want to enter a memo to remind yourself why you made the refund.
The credit memo is stamped REFUNDED and is automatically saved for you. The check is recorded in your register.