@Brandon9000,
the test of the success of the do not call registry is you not getting calls. If you are not getting calls very often then it is working pretty well. You are all hung up on wanting to know what one company has done to honor your wishes. What you fail to realize is that no where in this scheme is there a mandate for an information push to those consumers whom want information. Answering questions takes time and money, and your government has decided that answering individual questions is an unfair burden on the business community. Your government has not made your desire for information a priority.
What you should do is chill out until such time as this company calls you again, and then if they do call stop them in mid sentence and say only that you wish to be removed from their calling list. Generally requests for removal are honored, because these guys who call on commission have no desire to waste their time on someone who will not listen to the pitch.