I was given a 3 months free subscription and after it was finished they gave me an invoice regarding of my subscription and I don’t event want it nor make use of the Apple Tv+ for over 3 months. I reported it and asked for a refund but to no avail or it wasn’t granted.
that is sadly how all free subscriptions works these days, if you don't cancel it in time it will turn into a paid one
had the same problem several times with other free ones myself
this is how you cancel If you want to cancel a subscription from Apple - Apple Support
this is how you request a refund Request a refund for apps or content that you bought from Apple - Apple Support
this is where you can complain about it Product Feedback - Apple
this is how you otherwise reach out to apple
And or
And or
Contact - How to Contact Us - Apple
Or
Bar Reservation and Apple Support Options - Apple
Apple TV+ refund
