I have found these scammers to be very patient people. Several times I have had Talk Talk ( who provide my phone ) ring me up to tell me there is a problem with my computer. The conversation goes like this :-
Is your computer on?
No, should I put it on?
Yes.
OK hang on. (carry on with something else for 5 minutes)
Is it on yet?
No it's saying do you want to start in safe mode. Should I say yes?
Yes.
( Carry on working for 5 minutes )
Is it on yet?
No the screens gone blue. Hang on I'll try again.
( carry on working )
This can go on for over an hour. I even managed to nip out and buy teabags once and he was still waiting patiently.
I have tried phoning action fraud and am not convinced that they are actually doing anything.
My method works in as much as while he's on the phone to me, he isn't fleecing your Mum. The trick is to be productive while all this is going on.
Use things like:-
Where did I put those statements?
Hang on I've lost my card.
I'll just ring my wife to get the number.
Also don't be too bright. They like dealing with idiots it makes them feel like they are going to get a result and it is fun to hear the frustration in their voices as you ask the next dumb question.
Good luck if you try it.
Regards.
David.