I'll let you know what Casey Prince said to me. It makes it easier than them getting 100 emails with the same problem (although maybe they'll realise they need a better recruitment system).
They basically said if you haven't received a confirmation email to create a new email account, and make another application until you get a confirmation email. How many attempts it will take is anyones guess.
After about four attempts I gave up, emailed them and had them track my application