I need to refund a customer's overpayment. I went into receive payments for the first couple overpayments and there was the overpayment box on the bottom left. I was able to use that to create a check for those overpayments. However, there are still a couple credit balances that need to be refunded. When going into these transactions as I did the first few there is no box at the bottom left for overpayments. How do I refund the remaining amount owed to a client when there is no overpayment box in the bottom left corner?