I forgot to link to the terms I found in their notes section (to which they didn't mention in the competition posts + the comp closing date; I agree they're doing poor there).
Not as bad as many companies in Singapore (when I'm posting competitions on CheapCheapLah), quite a number of them don't have competition terms and conditions, don't always mention the exact prizes, and don't even tell you when the competition ends exactly.
Anyhow, for this competition it's a game of skill:
The winners will be the best valid entry selected by the judging panel, having regard to skill, creativity and originality, at the Promoter’s premises on the 23/1/17 at 12.00PM.
I suppose they're picking the winner on 24/1/17.
https://www.facebook.com/notes/vaseline/win-a-1000-aussie-da…
This is a pretty poorly set up competition - it has no rules. No way of knowing if they will randomly pick a winner or if it's a game of skill, nowhere does it say what the prize actually is. Annoying more than anything, but not professional either.
(None of which stopped me entering ;-))