You can stop ToriBooster subscriptions via Paypal.
1. Log in to your PayPal account and go to the "History" subtab of the "My Account" tab.
2. Choose "Subscriptions" from the pull-down "Show" menu.
3. Press the "Submit" button. Choose this subscription, and click on its "Status."
4. You will be taken to a Transaction Details page from which you may cancel your subscription.
Cancelling your subscription will immediately stop all future scheduled payments for this subscription.