Once signed into your account, you can cancel your recurring subscription by clicking My Account or Dashboard from the top navigation menu. Select Billing and locate your subscription plan at the bottom of the page. Click Change Plan and Cancel Membership. Your membership will be cancelled and your access will be removed at the end of your current payment period.
If you are looking for a refund, they are given on a case by case basis. Email me to chat about it. When you sign up, you are agreeing to pay the amount listed until you cancel the membership.