I've had a couple of calls from these people. The first one was by a chap called Carite Care, and we spent several minutes with him spelling out his company name and has own name, so I think I got it right. Then we got down to the nitty gritty - he wanted a few moments of my time. When I asked him how many, I think he lost patience and hung up.
The second call was by a lady called Grace. Before she could ask me any questions, I started asking her. First her age - she's 32. Then I asked her socioeconomic group, A, B, C or D. She said A. Then I asked what city she was calling from, and she said "overseas". Yes, I said, I can hear that, but what city? "I'm not allowed to reveal that," she said. "OK," I said, "fair enough" and I hung up.
The scam is this. They want to ask you questions that reveal what you'd be good for as a sales lead, then they sell the lead on to a company that will, for example, try to get you to change energy supplier. Why is this a scam? Because I'm registered with the TPS, and they're not supposed to make sales calls to me.
But if they do, I regard them as a legitimate source of entertainment.