Here’s a first. Coles is using Facebook to explain its pricing on milk via a video link. The supermarket giant was criticised last year when a farmer wrote an open letter on the same social media platform criticising the milk price war. It’s an interesting move given Coles’ blunder in 2012 when they launched a Twitter campaign that had to be shut down when a large number of consumers responded to it with highly critical comments.

Be interesting to see what happens. It’s had 100 comments so far. Remember when Westpac did something similar? Four years ago they used a video to explain why they had to raise interest rates. They likened mortgages to the economics of making banana smoothies. The public backlash forced the bank to take it down.