Arthur, I have just had the very same, they wanted to call be back with the latest hot share tips. I asked them to e-mail me but they insist that they want to call you, sounds like a Nigerian scam in the making to me.I expect nobody has ever seen the illusive report that they allegedely send out??
Anyway its not too much of a nuisance at the moment so I will try to flush them out if they call back, which I am sure they will. They have a name address & phone number from somewhere, no doubt sold to them by a bank, utility or credit card company, or perhaps they found a CD left in a train, plane or back seat of a taxi (next to the brown envelope)!!!
Interestingly I am registered with TPS and never opt in to receive unsolicitored calls from anyone!