A standard perk of credit cards is you can end recurring payments. Just file a dispute on the last charge and indicate you want to end the recurring charge. Sometimes the merchant is able to reverse the dispute, but most often times decisions go in consumer's favor (particularly when you provide proof that you took reasonable steps to try to cancel before disputing).

I've gone as far as getting months of gym memberships over turned after they told me one thing in person and then told me another thing a few months later when I started getting billed again. Charge backs and the point systems are the best things about credit cards.