Call the same number. You will have to wait for this incredibly annoying person to stop screaming over the phone telling you what their line up is. It will eventually transfer you to a person, just ask them to stop calling. Hopefully they will do it. I just did it, it was so annoying.
I followed the advice of the person right above me (call the number back, ask to be removed) and it was done... We'll see if I get any calls in the future... As a general rule, never give them your email or phone number. I don't have much faith my phone number will be removed from their list and even less faith I'll ever be removed from their email spam list (I've unsubscribed 10-15 times)...