How do I cancel my Tennis Channel subscription if I signed up via Amazon Prime?

Go to Memberships & Subscriptions in your Amazon Prime account settings, then follow these steps:

1. Go to Manage Your Prime Video Channels
2. Look under 'Prime Video Channels' to find Tennis Channel
3. Select the 'Prime Video Channels' option and confirm

Once you cancel, the renewal date in your Tennis Channel account details page will become the end date, and you'll no longer be charged for it each month. You can continue to access the Tennis Channel through Prime Video up until the end date.

You can find the Amazon Prime Video Support site here, or contact Amazon Prime directly at 888-280-4331.