Log In to your account by clicking the unique customer portal link sent to you via email or SMS or log into your customer account on our website.2. Click the Subscriptions tab and select Edit next to the subscription you want to add a product to. 3. Hover over the product you want to add and select Add one-time. This automatically adds the product to your shipment.  PLEASE NOTE: Any changes to a subscription, including adding a product, must be made at least 24 hours before your renewal date. We are unable to edit or cancel subscription orders once they have been processed.