How do I add or remove a product from my current subscription?
Adding or removing products from your existing subscription easy. First log in to your existing profile. Your current subscriptions will be listed under the Manage My Subscriptions heading.
From here you can see the details of your current subscriptions, and have the following options:
You can simply click on a product you want to add to your subscription, or search for it if that's easier. You can then enter the details of your subscription on the following page:
Tip: keep the "Next charge" date for the new product the same as your current subscription (the default) to have them delivered in the same shipment.