If you'd like to make any changes to the quantities or adjust anything else on the orders follow these simple steps. 

First click on the account login button:

and login to your account:

Then click Manage Subscriptions:

From here you can edit, or cancel upcoming orders. Click the Order # to edit your quantity or skip any upcoming shipments. Click on the Frequency to change how often you would like to receive your shipment. Click on Manage to do all of already mentioned as well as edit your billing and/or shipping information as well as ship an upcoming order right away, view past transactions, and add or swap products in your subscription.