You select how often you want your order to recur, and then every month (or whatever time period you selected) the system automatically charges your credit card and generates the order directly in our Shopify order system.
When you choose to buy a product you have the option of making it a one-time purchase or subscribing for it. When you subscribe you have the option of setting the delivery frequency.
You can add more recurring products at the same or different intervals AND you can add products that are one-time purchases all in the same cart.
Your credit card details are stored in STRIPE, the payment gateway used by our system. We can't manage those details but you can. You can also manage the subscriptions and change the quantities and frequency of deliveries when you login to your account.
So why not become a subscription customer and get discounts on every delivery?