selling Content to Users
i've got a question about a particulary Problem. Well, iam working on a Project (private Business Page) where i want to sell Content to Users.
User X should visit my Site, and select from a Plan. For example he decided to go for an 30Days Membership. After he'd chosed and fill out the Checkout Forms, he should be redirected to PayPal to complete the Payment.
When this is done, he should be redirected to my page again with an Message, that his Account activated and active for 30Days. The User Account should be automaticly expire after the period of 30Days.
This particular User should be able to create an accout on the checkout, if the payment is completed, drupal should free the "30Day Membership", if not the Account should not be created. <- This is the main Problem
Could someone help me?
regard from Germany