Yippee! I love SEO!
I (cheekily) asked and found out they only interviewed three people out of 60 applicants. I didn't (cheekily) ask how many were going forward out of those three - I only care that one of them is me!
This stage is a 'practical', which is interesting. Given the length of time I've been working in this industry I've never really been asked to do this - people usually go by your portfolio. However, I'm a big believer in it myself, having worked with some junior writers who it turned out couldn't actually write. You see, with a copy portfolio, you never know who might have edited a piece of work before it was printed - and how appalling the copywriter's starting point actually was. So, I have no issue with putting my money where my mouth is and writing a test piece.
Awaiting the details and ready to get my head down and get it back by Friday. A perfectly fair deadline (if he's right about the size of the task).
Soooo glad I'm not sick this week!