So I struggled to delete a free Apple TV+ account for a day now (tried different browsers etc) and decided to search if anyone else has had the same problem. Turns out this issue is at least a year old, is known by apple and the Apple support suggests to find someone else with an Apple device to help you out.
Just wow. This can’t be legal by EU law.
Canceling the trial worked but not deleting the account. You can read in my other comment what the whole messy process looks like.
You’re right I misread, my mistake