Hello,
Please read out documentation https://xstore.helpscoutdocs.com/ and watch videos – https://www.youtube.com/playlist?list=PLMqMSqDgPNmCCyem_z9l2ZJ1owQUaFCE3
Important: Be attentive, use only Private content area to post private information like access to your Dashboard http://prntscr.com/nwlnrv
Please describe what exactly you can’t configure and I will help you.
XStore is a digital product and you can find refund reasons here – https://themeforest.net/page/customer_refund_policy
Regards