It's a promotion by PizzaHut. I have no idea how long it's scheduled to run so take advantage of it while you can.
1) Doesn't require your real information. Just put in whatever.
2) Make sure you click "request a token".
3) Requires a UK post code. If you don't know any use W12 7TQ. It's Top Gear's :P
4) 2 + 2 = 4
i just did this & i live in north america. i didnt have to do part 4.