Coincidental to my boiler servicing hassle, I received, on the same day, two calls about "free" replacement boilers. Strangely both numbers were displayed and came up when I dialled 1471. As I usually do, when I'm dubious about who has called me, I googled both numbers but could find no obvious legitimate details as to whose numbers they were.
Does anyone know if these scammers, knowing that people are wary about undisclosed numbers, have some means of using an apparently(but not really) legitimate phone number? One number was an 0843; the other was a London - 0208 one.