how can I cancel a trial subscription from Apple TV
How do I cancel a 4 day free trial on Apple TV
How do I cancel a 4 day free trial on Apple TV
Cancel the same way as a paid subscription. See instructions in If you want to cancel a subscription from Apple - Apple Support or use an internet browser to cancel as described in How to cancel Apple TV+ - Apple Support
Cancel the same way as a paid subscription. See instructions in If you want to cancel a subscription from Apple - Apple Support or use an internet browser to cancel as described in How to cancel Apple TV+ - Apple Support
If this subscription was started in-app on an Apple device, or in-app in the Apple TV app, or is about Apple TV+, then it would be administrated through Apple.
On any of your Apple devices: How to cancel a subscription from Apple - Apple Support
On third party devices with the Apple TV app: Manage subscriptions in the Apple TV app - Apple Support
On a PC with iTunes: Use a Windows PC to cancel subscriptions from Apple - Apple Support
On the web (Apple TV+ only): How to cancel Apple TV+ - Apple Support
Other subscriptions will have to be canceled through other organizations, same as where they were started.
A 4 day trial period is somewhat unusual. Apple TV app Channels typically have a 7 day trial.
how can I cancel a trial subscription from Apple TV