They don't. These are cold calls and rely on suckers to bite, so to speak. But I have a very straight forward way of dealing any calls from India. Firstly, if they are legitimate calls initiated by a UK company I immediately cancel any and every account I have with that company. I make it known that I am cancelling my account because they use offshore call centres. But if they are cold calls and I have time to spare, I'll see how long I or my children (6, 10 & 12) can keep them on the line. It's better than the Playstation and you can have a bit of a giggle. Feckers the lot of them. And my ISP will not cut me off unless he wants a real fight.
PM