The lead case, against ANZ, is awaiting judgment in the Court of Appeal after class action members won a Federal Court case on late fees.
"When we launched the registration process for the class actions back in May 2010 the response was overwhelming," Middleweek said.
"I commend NAB for its willingness to seek a settlement leading to compensation for its customers.
"It's high time that the other banks followed suit."
Financial Redress specialises in recovering compensation from financial institutions for excessive charges or mis-selling.
It joined forces with IMF Bentham (IMF) in 2010, and is now a subsidiary of IMF, which is a public company listed on the Australian Securities Exchange.
IMF provides funding for significant and large-scale litigation, including the bank fees class actions relating to exception fees.
- AAP