NAB reassures customers over glitch

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The National Australia Bank says it wants to make sure customers of other banks are not left out of pocket by its computer problems.

Some people whose employers bank with NAB have not had their wages paid into their accounts at other banks and face fees or disconnection from services because funds were not available for regular payments.

NAB says some banks have agreed to waive fees incurred by their own customers as a result of the glitch, which affected millions of accounts over the weekend and affected other banks' systems.

But spokeswoman Meaghan Telford says if the issue is not resolved by their own bank, customers should contact NAB.

Telford stopped short of giving an assurance that all non-NAB customers who have incurred costs would be reimbursed by NAB, instead saying "we encourage customers to ... contact their bank first but equally they should be in contact with our bank also".

She said NAB would deal with claims on a case-by-case basis.

The bank said earlier it had fixed the computer problem which led to millions of its customers being without cash for days.

It had identified all instances of duplicate and multiple transaction entries in people's accounts, it said.

"The majority of these have now been corrected so that transactions and balances for these accounts are now accurate and up to date," the bank said.

"Other banks can now also begin to process any salary or other payments to their customers which may have been impacted by the processing delay."

But about 19,100 accounts still have uncorrected mistakes.

NAB said it would work to bring these accounts up to date.

Spokesman George Wright has denied reports that human error was the cause of the problems, insisting a corrupted file was to blame.

- AAP