If you want the users to see a note from the admin, the Survey Maker plugin has the Admin Note feature available. The admins will be able to leave note(s) for your users.
But in case you want to give the users a chance to leave feedback, then you can make use of the User Explanation feature.
Please, note that if activated, both these options will be visible to the users all the time, not only after answering the questions.
By the way, as the feature is available only in the Pro version of the plugin, please contact us via this form for premium support. Our customer care specialists will always be happy to help you.