make me do voice call and i’ll hate ya

I like this. In short, whatever method you use to sign up (online, for example), you should be able to unsubscribe just as easily.

I helped two friends get rid of subscriptions to the Greensboro News and Record a couple of years ago. It was Byzantine.

I like that some credit cards have a unique number generator with ability to switch the number off and on. PayPal is also an option. Unauthorized rebills get declined.