Popuppro mailchimp refresh problem

I'm using popuppro with Mailchimp, and popuppro set to activate when the user scrolls down. The problem is when a user hits "submit" in the popup, the whole page refreshes and then when they scroll down the refreshed page again, the popup appears again with the green text that confirms a successful subscription.

Is there a way to have the page NOT refresh- ie: they submit, the message appears in the popup, and then they click the X button to close the popup.