Showing pre-filled form fields during subscription

Hi.

I would like to show customers their pre-filled name and email, for further confirmation.
However, if both name (firstName and lastName) and email are set, the page is completely skipped in the subscription dialog.
I would like to show the page with all the fields pre-filled, so that customers can double-check that the data is correct (say, the pre-filled name and email could come from a Facebook login, but maybe the values are not appropriate for billing, depending on the user).
Is there any solution/workaround?

Best,
Massimo, for DoYouNotes