**Update** It's been a little while since they contacted me to tell me that I had won this month, so I gave them a call to see where my spark plugs were.
The told me that the plug my car took (in their Iridium range) wasn't sold in Australia, so they'd been in contact with NGK in America to get a set imported. Guess what?? NGK US wouldn't supply them with a set, so they are going to give me 2 sets of conventional spark plugs instead.
I sort of suspected the supply problem, as I've tried to buy the Iridium plugs before from a couple of different suppliers and the part nos. aren't even listed.
Even though I don't get a trophy for being this months winner:cry:. If you look on the website, there's a picture of a trophy next to the photo:lol: - so it's not a total loss.:ban: