Unsubscribe Is Not Working

I have unsubscribed everyday for the PEAR mailing list yet I receive emails constantly... I get the following back everytime I try and unsubscribe... This is the only email address I use:

Hi! This is the ezmlm program. I'm managing the php-general@lists.php.net mailing list. I'm working for my owner, who can be reached at php-general-owner@lists.php.net. Acknowledgment: The address tom@curiousclothing.com was not on the php-general mailing list when I received your request and is not a subscriber of this list.