I will refund money back for my plugins if all of the following conditions are met:
1) You can request refund within 7 business days after complete order.
2) Provide me access data to your site (Site Url, Login Data, FTP Data), when you saying that plugin doesn’t work properly.
3) Plugin causes errors with oxwall core (I don’t guarantee compatible with 3rd party plugins, but most of cases I create integrations in my plugins)