Same story. Called me twice just before midnight. I got online to see what it was and this site gave me the answer. I called to see if I could be taken off the call list, and sure enough, if you wait long enough, there is an option for it. You can block your number from their service by pressing 9, then confirming it twice by pressing 1, then 7. Hopefully I never receive another call from this highly inconsiderate "service."
I called their customer care number at 877.491.5415......it then said press 1 for male, press 2 for female. After I pressed 2, I got a live person on the phone and asked for my number to be removed. Hope they really did take my number out!