To update your shipping and billing information for your subscription, access your subscription account and click on the Manage Subscription Link provided in your initial Subscription Confirmation Email. From there, you can also choose to cancel your subscription. If you're unable to locate the link, you can either contact orders@musclenatioofficial.com via email or use the Live Chat feature on our website.It's important to note that any modifications to your shipping or billing details should be made at least three business days before your upcoming charge date.