You can change your subscription details at any time through “My Account” on ZENB.com once you have created an account.
Simply sign in to your account at https://zenb.com/account/login. Once you have logged in, click on the "Manage Subscriptions" link underneath the Account Detail column. From here you can choose a subscription order and add, remove, or swap the items in your order.
You must make any changes to your subscription 24 hours before your "Next Order Day" for each period in order to ensure the changes are in place for that order.
If you have multiple recurring orders in place that you wish to adjust you will need to go through the process outlined above for each individual order to ensure that all of your recurring orders have been successfully altered.