To cancel your subscription, go to the Subscription & Billing section under My Account and click Cancel subscription.
You will still have access to premium features until your account reverts to the free mode.
If the Cancel subscription button is missing, you may either be subscribed to the PRO Business, Starter, or Medium plan, which requires contacting support to cancel, or you may have already canceled the renewal. If you're unsure, feel free to contact support to confirm your subscription status.