19 Refund Payments
From TrueERP wiki
How do you apply a Refund to an Invoice?
Select Payments Module, Select Customer Paymen button, Drop down Customer and automatically all the Invoices of the customer will be on your customer payment card, tick on apply column fill in amount of refund and Save to finish transaction. You will see that Refund type will be included in the customer payment card and the outstanding amount was also being stated.