When someone has filled out the feed back form how do i view it?

You could view the submitted info in the submissions page by following this guide: https://www.jotform.com/help/269-How-to-View-Form-Submissions 

You could also set up an email notification, currently there's only an auto-responder with missing recipient field, this guide will help you to set the notification up: https://www.jotform.com/help/25-Setting-Up-Email-Notifications 

Hope this helps.