Let’s try to figure out your request. I visited your website and tried your popup. What can I see:
1. To open our popup I should press “JE VEUX LAISSER MES COORDONNEES”: http://prntscr.com/jkjuhk
2. Then I should enter my email and name in popup fields and press submit button “Je m’inscris maintenant”: http://prntscr.com/jkjxaq
3. Then popup closes and I can see success message: http://prntscr.com/jkk06v
As I understand, you want to show username and email on success message – you can do it, if you integrate our Contact Form into popup: http://prntscr.com/jkk6zl.
Please be advised that this feature will replace your current PopUp forms (Subscribe, Login and Registration) with Contact Form.