Happens in the States too
My wife got a call early last week from someone claiming her computer was infected. The caller wanted her to log into the PC and visit a 'special' web site.
I'm not sure if she would have cooperated or not, but she can't get into my PC and her laptop wasn't available. She finally hung up and called me.
I told her not to ever do something just because someone calls and tells her to. She had suspected it was a scam, but didn't understand the full implications.
I wish I had been able to take that call, it might have been entertaining to fuck with the crook.