I always try to cancel subscriptions with a legally binding letter. In Austria we have a federal signature service, which can be also used to sign PDFs. Those s

I always try to cancel subscriptions with a legally binding letter. In Austria we have a federal signature service, which can be also used to sign PDFs. Those signatures are legally binding and have to be accepted by all people and companies inside the EU. So I send a signed letter via email to the company. I ignore all their forms, procedures, intimidations. If they don't want to accept it, just threaten them with a credit card dispute (which you will win). I have no idea about the laws in the US though, if that's possible. And yes, it's annoying. But you just need to figure it out once, and use the same standard procedure for any services/subscription.