Cadbury announced on Facebook that they are going to shrink the size of their king size blocks:
We want to keep our Cadbury blocks affordable, so decided to reduce the block size rather than increase the price.
This isn't the first time they've done this to consumers and New Zealand is fuming about the change on Facebook, as seen in this comment from Mands O'Sullivan:
Hey Cadbury, I've got an idea. How about you make your chocolate bars so small that they disappear altogether!
What a national tragedy.