From the Optus small and medium business brochure:
"Pay as you go at 1.5c/KB capped at $9.90 for up to 5MB; after that
charged at 0.30/KB."
I understand the first bit - if you download between 550KB and 5MB
you'll pay $9.90 - but above that is the excess KB fee in cents, or
dollars? Using either unit the excess fee is quite significantly
different to the base fee... $0.30 per KB is 20 times the base price,
0.3c per KB is a fifth of the base price.
Just to muddy things further, the "data included" plans show the
excess in *MB* rather than KB, and the price starts at $0.30/MB which
leads me to wonder whether the PAYG data excess is actually $0.30 per
*megabyte*
Does anyone know for sure?