Disney Movie Club help please! Is there another way to say no to the mailing offer?

Disney Movie Club help please! Is there another way to say no to the mailing offer? Like a way to do it online or anything like that. I got the offer in the mail but someone threw it away. I do not want to ge the offer at this time. Is there another way for me to say no to it other than mailing it back in? If so could you please help by either providing the website or number because I cannot find it!