eStore2App offers module exchange guarantee in which any of our customer can use his/her paid amount to purchase any other module, provided that he/she hasn't downloaded the purchased module. It will not be possible to accept the refund request. If he/she purchases a module which has lesser price than earlier module then balance amount will not be paid. In case customer faces some serious issue after installing our module, admin and FTP details are needed to look into the issue. Please note that Remote desktop or Teamviewer access are not allowed. Please don't buy any module if you can't share admin, FTP and database login details when required.