Hayley, I think it sounds dodgey as. How can you dispute it if it arrives and it's a "lemon:?? I think the danger here is it could be really nasty cheapo synthetic fabric, instead of the good fabric which is what you pay for in a good gown. I reckon you're better off trying to get one in Australia, even better in your area and asking to see it before you bid (so you know what the fabric is like, how it feels and how it sits/falls).

BTW I bought a very simple but gorgeous dress off the rack for $400 (that was a few years ago) so you can get some bargains if you look around.