Ok, after I spoke to "Sarah" on 1 Dec 2010 (see below), I slowly stopped receiving calls and then recently they've started picking back up...of course not happy about that. I called again and spoke to "Sarah" and she said that I am out of the Dialer and that she does not have access to the "Survey Database", which also contains my/our numbers. So she is going to ask the woman that has access to it to ensure I've been removed and will then call me back. She is a very nice girl and I'm very polite to her as well and as a result she's nice back. Try calling the number listed to have your name/number removed from both places.
One thing she said was that apparently in the past some employees have taken/stolen the numbers from the database and likely resold them, so it's possible that the referrals are coming from a different source, although they attempted to put a stop to that kind of thing happening by limiting who has access to that database. This is what I'm being told, hopefully this hasn't happened in the recent past.
Number to call: 813.988.5941