A class action lawsuit against ANZ New Zealand is escalating as law firm Russell van Hout prepares a cross-appeal. This legal maneuver could significantly increase the bank’s potential financial liability related to alleged consumer law violations. ANZ has currently estimated potential costs from the class action at $125 million. However, Russell van Hout argues that this figure could rise substantially if their claims are successful. The firm is challenging previous rulings and seeking to broaden the scope of ANZ’s responsibility. The case centers around allegations of breaches of consumer law impacting a group of ANZ customers. Further legal proceedings are expected to determine the final cost to the bank.