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Customers are dissatisfied with Burger Co$.,$ as the burgers it is making are small when compared to what is conveyed in its advertising. Dissatisfied customers commence a class action $($group proceedings involving multiple plaintiffs$),$ arguing that pictures of the acclaimed "monster burger" in advertisements organised by Burger Co$.$ are not representative of the burger in real life. Burger company responds to customers by saying that the burgers they sell do not need to look "like the picture". What action could the dissatisfied customers take using Australian Consumer law? $(20$ marks$)$