I'm not sure if everyone gets that email. I got a similar email when I applied a while ago, and same thing, it only gave me the other cities. And I ended up going to the OD in my own hometown, and it was fine. This will be my third time trying. First time I got to final interview stage, and second time not quite as lucky. I'm hoping it's a case of third time lucky!
Yes, I'm going to the Melbourne one. Just trying to decide whether I go to the one in October or November. We're lucky in Australia because they visit us quite often. Will it be your first time?