Good Registration Form Plugin with Payment

wordpress

#1

Does anybody know of a good plugin for registration forms that require paypal payments? I am currently using Visual Form Builder Pro, but the problem that I have with it is that it doesn’t check if the user paid or not. The user can submit the form and they are entered into the database, but they can just exit the paypal page and nothing will tell me that they didn’t pay. Any suggestions would be great, thanks!