We're receiving several calls a week from "card holder services" as I'm sure all of you are who still have landlines. Instead of just hanging up I've been pressing 1 for more info and setting the phone down. I hang it up when the phone beeps at me. Since there's often a several minute wait to get to a scammer ("You're number 27 in line - please wait") I figure I've at least tied up their line for that long.
Occasionally I actually wait for an answer and keep the scammer going for a while before I tell him/her what I'm doing. I've gotten some very creative cussing that way :-).
I wonder. If all of us afflicted by this scam did the same, would we make their scam unprofitable? Or at least less profitable? Seems they'd have to rent more phone lines to keep up their volume.