NatWest's mobile phone application that lets current account customers withdraw cash without a debit card is being suspended due to fraud concerns.
The recently-launched Get Cash system allows customers who have lost or don't have their debit cards with them to use the app on their phones to generate a security code, which can then be used to withdraw up to £100 from a cash machine.
The bank also provides another similar service which allows customers to phone in for a secure code.
However, it has emerged that some customers have allegedly lost hundreds of pounds due to fraudsters hacking in to the system.
NatWest has announced that the system is being suspended for a "planned update".
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