During the event of a buy error, a refund is simply possible if a module has not however been downloaded. Or else, no refund is possible. We are formulated the module 5 years ago and given that then we have constantly improve it by rendering it mode secure and adding https://www.presta-addons-modules.com/es/free-modules/prestashop-popup-on-exit-page-on-browser-tab-close-event.html