You can cancel your subscription at any time by clicking on the options button (three vertical dots on the top right corner) and going to your Account Settings page. Then select Shop and then Subscriptions from the sub-menus and your subscription will appear.
Click on the View button beside the subscription.
This will bring up the screen below. Click on the Cancel button and your subscription to request the cancel.
A cancellation request will result in a “pending cancellation” status, allowing you access to the membership to the end of the current billing cycle, at which point your subscription will be cancelled and not renewed. If you change your mind, you can always reactivate your subscription.
If you are on a mobile device, click on the megaphone icon on the top (second from the right). Then scroll until you see Settings and then Shop. You should see your subscription.
If you are having difficulty cancelling, you can also send an email to email@example.com.