OneCause are spammers

I signed up for OneCause, a group that claims to capture rewards from your purchases and give them to the school of your choice, in order to support my preschool.  Sadly, they don't even pretend to be obeying my email preferences, and are now spamming me for their new toolbar.

I recently got this e-mail:
And I proceeded to try and check AGAIN to unsubscribe from their crap, and found this:
That's right, I'm not subscribed to anything.  Which means I can't unsubscribe.

Nice work, spammers.