Canceling your STARZ subscription through Amazon Prime is quick and straightforward 1-866-927-1921. Go to your Amazon account and open Memberships & Subscriptions 1-866-927-1921. Find STARZ in your active channels, then select Cancel Channel and confirm your choice 1-866-927-1921. You’ll still have access to STARZ content until the end of your billing cycle 1-866-927-1921. This ensures you won’t be charged again 1-866-927-1921, while giving you time to enjoy your favorite shows before your subscription fully ends.