I'm really surprised that they haven't started mass texting everyone with their [censored]. I'm sure it'll happen sooner or later, though.
As far as the calls.. if I have time I answer them and go through with the scam. You'll end up connected to a call center in India. Don't give them any info, but take your sweet time when you get a person on the line and troll them along with fake answers. I've had them get incredibly [censored] at me for doing this because their entire game is quantity. If they have to waste 30 minutes with you and not meet their quota, then it really [censored] them off.