Barclays Bank is introducing a new service for its customers whereby they can withdraw as much as £100 in cash by tapping their smartphones on high-tech contactless cash machines. This will be the first time that customers are able to tap a phone against a cash-point to make withdrawals. The initiative, which is for use with Android smartphones, will be launched in December, the bank said. Customers will have to touch their mobile device or contactless debit card against a machine in a branch and then entering their PIN on the cash-point, they can withdraw cash. The customers will also be able to pre-enter their PIN into their phone using the bank’s mobile app and then just tap their device against the machine to make the withdrawals. The bank aims to have about 500 of the new cash points operating in 200 branches across the country by January before a wider roll-out of the contactless technology, including to high-street ATMs.