Now I am an aussie, so I know how rigorous their Customs rules are, but still this sounds like bollocks to me -
They have both insisted that they must pack our stuff. One said this was because Customs would wonder why we were shipping our stuff half-way round the world, having packed it ourselves. Apparently this would attract suspicion and they would go through it and then we'd have to pay the search/repacking costs. He said professionally packed stuff is less likely to be searched.
I've moved internationally half a dozen times, including to Oz in the 1980s, and I've never heard of such a thing. I would really prefer to do it myself, whaddyarekkin?