https://squareup.com/help/gb/en/article/6350-process-a-return-or-exchange-with-square-for-retail
Process a return or exchange with Square for Retail | Square Support Centre - United Kingdom
With Square for Retail, you can process a refund or an exchange through the Square Retail Point of Sale app on an itemised ba... Square Support - United Kingdom
process a return or exchangesquare for retail