In order to cancel your Active subscription:
- Log into your account page here
- Select the Subscriptions link from the top menu
- Click on the specific subscription id you wish to cancel.
- Click the 'Cancel' button.

Please note that you need to cancel your active subscription BEFORE the renewal date. 

The moment you will cancel your subscription, it's status will change from Active to Pending Cancellation. This is because you have paid for a subscription until the end of the renewal date, so until the end of the pre-paid period. When the pre-paid period ends, so right after the renewal was suppose to take place, the status of your subscription will change to Cancel.