Yes.

Do you have a registration process of some kind that, once properly completed (perhaps after your credit card gateway responds positively) needs to create a user in your system, and gives that user some form of tailored access?  You can use AMPro to do this. 

AMPro comes with tools (well-documented custom tags that you plug into your application) that let you create users and tie in the permission profile of your choice to that newly created user. 

They will also notify that user that they have access, and give them the link into your system they need to choose their password and hint/answer which, once completed, makes them a fully authenticated user with the permissions and access you have chosen to give them.

The process only requires a valid email address for the new user.  Complete details are available to registered users.