If they're so true to their scripts it should be easy enough for someone to listen to a call and formulate a response that can just be played down the phone, re

If they're so true to their scripts it should be easy enough for someone to listen to a call and formulate a response that can just be played down the phone, requires no time investment from the recipient of the call and because the scammer is so desperate for a sale they'll stick through even when it seems like the person on the other end isn't 100% legit.