Hearst Communications review: sending magazines I did not order

I did not reorder the Redbook but when I have ordered the redbook I pay in advance, and never order any magazine, without paying right away. I have many magazines that say I have a ordered these magazines. Some are honest and let you cancel by phone, or on the Internet, where do I find a way to stop Hearst sending magazines I did not order. Please cancel all magazines.
Thank you.