This is great if its true.
So many people in India got cleaned out when they when the put a ban on the Rs500 and Rs1,000 notes .
check the article here.
https://www.ft.com/content/d0df23f0-d8b6-11e6-944b-e7eb37a6aa8e?mhq5j=e2

This is why Fiat currency is rubbish. They will only do what suits themselves. The little man always loses.