If You Subscribed at amcplus.com
Our customer service team would be happy to assist you with this. Our website and apps do not yet offer the ability to edit your payment information on your own, but this is coming soon. If you need to change your payment information now, please contact us by clicking here to open a ticket or by emailing us at firstname.lastname@example.org. Our team will need to cancel your current subscription (and issue a prorated refund) so that you can start a new subscription on your existing account (user profile).
If You Subscribed Any Other Way
If you subscribed via Apple, Amazon, Roku, Comcast Xfinity, DirecTV, DISH, Sling or YouTube TV, please contact them directly for assistance in changing your payment information.