There is no available option to cancel the smoothie subscription service on Daily harvest and to delete the credit card data to stop money transactions. I have been getting these smoothies for three months after I requested to unsubscribe. I contacted them in October but the subscription was canceled in January. They just made me to paid money for the product.
If you are actual Representative of Daily Harvest you can contact the user using the comment form and help resolve the situation. The user can always mark his complaint as "resolved". Maintain your brand image, it is FREE.