Card fees class action in High Court

Lawyers hoping to quash "absurd" excessive bank fees are continuing their fight in the High Court.

Maurice Blackburn Lawyers are appealing a 2015 Federal Court loss in their case against excessive charges, in particular ANZ's charges of up to $35 for late credit card payments.

The firm argues the true cost of the fees ranged from a few dollars to only 50 cents and customers should be refunded the difference.

Lawyer Andrew Watson said banks shouldn't be allowed to charge a $7000 late payment fee.

"We think that's just absurd and we hope the High Court agrees," he told ABC TV.

The decision will affect every banking customer who has ever paid a late payment fee on a credit card in Australia, he said.