They automatically renew your membership unknowingly. The checkbox to automatically renew is hidden when you sign up. Then they will not refund the money just send you an email that they understand your frustration. Keep clear of this company.
Here is part of the letter:
Thank you for contacting Member Care. I can understand your frustration and will do my best to address your concerns.
Because members are informed that their credit card will be charged on their renewal date during the initial payment process, we do not send an additional reminder. Many members prefer to reduce the paperwork and email that they must deal with on a regular basis.
Product or Service Mentioned: Classmates Membership.