You need to access your account on our website and go to "Manage Subscription" or you can manage your subscription by clicking on the "Manage Subscription" on the email that we sent you when you placed your subscription order. From there, you will be able to add your products, change the delivery date, the order frequency, your billing info or even cancel your subscription.
Alternatively, you can also go to your Swiss Toniq account by logging in using your username and password Click here, then click on “Manage Subscription » Click here
On the Manage subscription page, click on the "Edit" below the product name.
Then edit the quantity, and click on "Update".
Should you have further questions, please do not hesitate to reach out. Thank you