Shame on you Woolworths

I went to the okavango woolworths store in the western cape, to buy chocolate moose. The container says 1 litres, and I immediately doubted that, so I weighed it at the teller in woolworths, and it showed 660grams. 660grams is 660ml of product. To me this is false advertising and is a total disgrace. I have photographs of proof, however, this site does not allow me to attach pictures.