http://www.orcon.net.nz/about/article/changes_to_orcon_and_orcon_broadband_data_prices
Umm ..... I think I'm the wrong/old plan then Mr Duncan.
Because when I go over my 15GB Cap I get an email with this in it :
"You are getting close to or may have gone over the next data bracket. Remember that after your free quota of data, additional data chunks are charged at $10 per 5GB (or part thereof)."
First email I got like that was 08/11/2008 (at least that's how far back I've been getting them in my Mail database...)