That must have been an old hotel Wizard, our house is nine years old and the daughters a lot older we all have UK type sockets and power supply, you can buy new appliances with American two pin plugs on, in fact I bought a heater this week for the winter with this kind of plug, I soon replaced with a normal three pin plug as you use in the UK..
If you should end up with a two pin socket I would also be surprised, but as posted adapter plugs are cheap and easy to find in all kiosk's and supermarkets..