when i call to bust scamdicappers - almost every one of them now tells me the same thing - they are not handicappers - but "information gatherers." BULL SHIT! they are scamdicappers and it sounds like this guy is pond scum. the next time he calls tell him you wish to be taken off his list and hang up. if he calls back again - and it is him calling - have a referee's whistle nearby (i ref basketball games and i use a "Fox 40" whistle - they are the best - and cost about $5). when he does his sales pitch - ask him to hold on for a second. get the whistle and blow it AS LOUD AS YOU CAN into the moutpiece. after doing so - ask him what it was he wanted to talk about. i promise you he won't be in any mood to talk. if he is - blow it again until he gets the point.
either that - or ask for his address, phone and what state he is licensed in. i promise you he won't tell you and he will ask why you want it. tell him so you know which office of the better business bureau to report him to. i also sense this will suddenly get him to stop calling you.