The daughter-in-law of an elderly woman scammed out of $100,000 believes the bank should've picked it up.

The Auckland victim was tricked into sending the money overseas to unlock an imaginary Covid subsidy payment.

Kim Weston say her mother-in-law made 13 international money transfers in person at her local ASB.

"She's been with the bank for 25 years, she'd never transferred any money before- maybe the first one would have been alright, but with the amount of times she's been in there, I thought if would have brought red flags straight away."

The Banking Ombudsman is investigating the case.

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