If you wish to cancel your Plus membership follow these steps.
1. Go to: https://www.on1.com/account/orders/
2. Click Manage Subscriptions
3. Click Manage to Update payment method or cancel your subscription.
You will retain Plus membership access for the remainder of your membership period. At the end of your membership term, you will not get billed and will then lose access to Plus content and benefits.
You will not be refunded any prior membership purchases. If you wish to request a refund of a membership payment that has already been processed please contact ON1 support: https://www.on1.com/plus-support/