On the Loan Payment Screen, you want to select the loan you are wanting to discount, Once you have done that you want to enter the full overdue amount, then

First you need to select “Retail Menu”, just like the image below. then once you have done that select the “Refund and Layby Cancellation”, like the image below. Then you

At the Main Menu, Select the “Till Balancing” Then Select the button Redistribute Payments like picture below, Then Select the tab that you are wanting to do “Loan Payments”, “Retail