Cannot unsubscribe, emails still coming even after deleting my account

I followed the unsubscribe link from one of the Seeking Alpha emails, and it says that I'm successfully unsubscribed, but I keep getting multiple emails each day. Even after deleting my account, the emails don't stop. Now following the unsubscribe link gets me to the account where my email address is deleted_48496061_myname@mycompany.com (where myname and mycompany are my actual name and company). So unprofessional.