The two methods of joining the interactive World of
Payment-methods: credit card processing
Bezahlarten: per Kreditkarte oder Bankeinzug
Membership-costs are 14,90 € (~19,50 US$) for first month or 19,80 € (~26,00 US$) for the first two months depending on the way of joining and 9,90 € (~13 US$) for every following month. The membership renews automaticaly every month until you cancel your membership.

The membership can be cancelled every time. If membership has been cancelled you get access to the site until your paid membership-period ends.

So: You have no risk at all! You can cancel anytime and if you do so you will have no further costs!