CAMPAIGNERS have vowed to continue the fight to recover overdraft fees on behalf of one million customers following a surprise Supreme Court ruling in favour of high street banks.

Mike Dailly, principal solicitor at Govan Law Centre, a free legal resource in Glasgow, said he had been instructed by financial expert and television commentator Martin Lewis, of MoneySavingExpert.com, to rework guidance for consumers “as a matter of urgency”.

The development comes after it was ruled that banks can continue charging arbitrary fees to those who exceed their overdraft limits. The fines raise about £2.6 billion a year for UK banks.

While the Supreme Court found that the charges did not come under the unfair contract rules, it added that the charges could be assessed under other “fairness” criteria. More than one million people had their claims frozen while the court action proceeded.

Mr Dailly said: “Within a matter of days we will have amended information and amended letters of complaint to the banks on MoneySavingExpert.com in a bid to protect one million consumers in the UK. It will all be done with a top team of barristers in London, taking on board the wisdom of the Supreme Court.”

Mr Dailly said that more than one million people had downloaded the necessary paperwork from the Govan Law Centre website to reclaim their charges from the banks.

“This is not dead in the water. We have lost the battle today but the campaign is going to win,” he said.

Mr Lewis said: “It wasn’t a loss, the Office of Fair Trading fought on the wrong clause.

“The initial shock reaction by the crowd in the court, thinking that the banks had won, obscured what was perhaps the most important part of the ­judges’ final statement, that the OFT may be able to look at fairness by another route.”