edit, here is the gist:
In July 2020, the Court found that Kogan had misled consumers by advertising over a period of four days that they could use the code ‘TAXTIME’ to reduce prices by 10 per cent at checkout, when Kogan had increased the prices of 621 products immediately before the promotion.
In most cases, the prices of these products had been increased by at least 10 per cent. Kogan then decreased those prices soon after the promotion ended, many back to their pre-promotion prices.
https://www.accc.gov.au/media-release/kogan-to-pay-350000-fo....