Hi,
Are you trying from their website?
How do I cancel my UFC FIGHT PASS subscription?
Click on the “My Account” tab on the top of the UFC FIGHT PASS page. Once you are there, click on the “My Subscriptions” tab. Then Click “Cancel Subscription” and when asked to confirm click “Yes, Cancel Subscription.” You can resume access to UFC FIGHT PASS at any time, as long as your payment information is up to date.
You can also contact them :
How do I contact Customer Support for UFC.TV or UFCFIGHTPASS.COM?
Email Support@ufc.tv. with any issues regarding UFC.TV and devices.