Sorry to hear that you have had trouble with the club after years of being a member as it sounds like you have enjoyed reading the various titles they have sent to your attention each month.
As it sounds like the online contact information is not working, suggest that you contact customer service directly. They can be reached at 1-***-***-**** Monday through Friday, 8AM-6PM EST
It sounds like you have enjoyed your membership for awhile now as I am sure they can stop the latest titles mailed to you. You might then reconsider being a member if you have already not become tired of being a member.