The fake ‘unsubscribe’

ARGH!!!!!!!!! I'm so sick of unsubscribing from some stupid-ass spam and then continuing to receive emails. Never ever order anything from these people. I made the mistake of ordering some towels when I had friends coming into town. First, the towels arrived about three days after the guests departed, even though I placed the order on the web over a week before their arrival. Second, ever since then I've received monthly emails. Every time I've unsubscribed, only to receive another email a month later. What gives?!