Sometime yesterday, bigpond decided somewhat arbitrarily that I had used ~10G of bandwidth, including 3G uploaded, more than is physically possible to chew up. Apparently I'm not alone - a bunch of people have suddenly had up to 28G of usage show up in one day.
I've reported it, and they've said they are following it up, rather than the normal "it must be you". The Arcanacon site has been crap all day today as it was shaped, and I'm not sure when it will be better - I've been promised today I'll be creditted with 2G while they sort it out, and it seems a bit better. But if they take a while to sort it out, 2G could go in a week or so, and it might get shaped again. Hoorah
(Because I haven't had the $400-odd to change to someone else, that's why)