C&S prices have remained the same since it's inception so I don't know
why anyone is surprised the prices have gone up. If they had instigated
a small rise each time other costs went up it would probably be more now
and people wouldn't be complaining...
https://www.change.org/petitions/australia-post-reconsider-the-parcel-price-increases#
Don't forget every vote counts both buyers and sellers are going to be
affected buy this in a big way