The other sticky problem I'm having is with Jo-Ann Fabrics. I've attempted to unsub from them a half dozen times. I suspect, but do not know, that the problem is the with-or-without-the-period issue in usernames with gmail. Also, they have a comprehensive change-your-info page which handles text, e-mail address changes, preference changes including direct mail changes; it's possible that it's just cumbersome and broken. I believe that very simple unsub pages that let you type in your e-mail address (as opposed to pulling it off the link embedded in the e-mail they sent you) are much more effective.
I finally sent e-mail to customer service asking to be unsubbed to the two variations of the e-mail address which is receiving the marketing e-mails. Hopefully it will work. Because they are sending something at intervals of more than three times a week. WHICH IS FUCKING INSANE. Who is running a marketing department that thinks sending bulk e-mail out more than three times a week is a good idea?
ETA: Customer service has this to say:
"We have received and processed your request to be removed from our mailing list. Please allow up to two weeks for this change to take effect."