Westpac has told the Rotorua District Court how an anonymous caller from China alerted them to the theft of $10 million two weeks after it was mistakenly put into an account.
Kara Hurring is accused of fleeing New Zealand after Westpac bank mistakenly loaded $10 million into her former partner's business account.
Ms Hurring and Hui Gao, also known as Leo, are accused of transferring nearly $6 million from his account into various accounts before leaving for China in 2009.
The woman is on trial at the Rotorua District Court facing 30 charges of theft and money laundering.
A Westpac employee, Wendy Wang, said she received several calls from a man she recognised was calling from a Chinese cell phone.
In written evidence, she said the man told her someone was stealing money and mentioned $10 million.
He told her that $4 to $5 million of the money had already been stolen.
Ms Wang said he wanted a reward for information and said he would split the money with her if she set it up.
Ms Wang, however, told Westpac management.
Earlier a casino manager told the court how some of the so-called runaway millionaire's money could have been laundered using gambling chips.
Vice-president of the legal department at a Macau casino Jason Schall told the court Ms Hurring loaded a players' account with about $340,000 and withdrew most of it in the form of gambling chips.
But he says there is no trace of those chips being spent at the casino, and as far as he can tell the money disappeared.
He says by law they are only to be used for gaming and can not be spent in the casino's restaurants or shops. However he says they can be sold for face value or less or given to people.
"They are, in theory, a type of negotiable instrument and therefore they have value."
Clerical error blamed
A Westpac manager told the court an employee accidentally uploaded $10 million into the account through a clerical error.
Manager of the bank's crime division at the time Stuart Hansen says the error was down to either adding an extra couple of zeros or putting a decimal point in the wrong place.
Mr Hansen says the bank has taken steps to ensure it will not happen again.
Money spent on fast food and clothes
Earlier, the Crown read out a detailed bank statement, showing the transactions Kara Hurring made in the days before she fled to China.
It indicates she spent money at McDonald's, the Noodle Bar, the Recycled Clothing Boutique and Farmers department store.
There were also several ATM withdrawals of about $1000 and she repeatedly went over her daily limit.
In other written evidence, a Westpac bank employee told the court how an anonymous caller tipped her off about the couple.
Wendy Wang says she received a series of phone calls from a man in China shortly after the banking mishap.
Ms Wang said the man told her that he knew someone was stealing money and wanted a reward for information.
She says at first she thought it was a joke, but kept phone records and forwarded all the information to her bosses.
The court has already been told heard it took two weeks before Westpac realised the error.
