Barclays customers have taken to Twitter to complain that their cards are not working.

Customers said that they could not withdraw cash, that their cards were being declined and some complained of problems with Barclays online banking.

Twitter user @chriswhite_twit said: "@BarclaysOnline I can’t use my card. I’m in an unfamiliar city. I’ve been on hold with Customer Services for 27 minutes. I am very annoyed."

@CobblyBob said: "Just had a look at @barclaysonline and it appears that there is quite a big issue. Rubbish."

Barclays admitted it was having problems at card terminals and ATMs but said the technical issues were only affecting a small number of customers.

However, cardholders disputed this, one Twitter user saying Reading branch was "choka" with customers unable to use the ATMs to withdraw money.

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Recent outages in the UK have included a technology glitch at Lloyds in January when two of its seven computer servers crashed and left debit card customers unable to access money from ATMs.

A similar technology problem at RBS left around 750,000 customers unable to use their debit and credit cards in December 2013 and RBS and NatWest customers were once again hit by a technology glitch in January, when they were unable to pay for fuel at Tesco petrol stations.

RBS spokesman said the issues were a problem with Tesco’s technology and that their bank’s systems were operating normally.

This did not diminish the frustration of customers, who pointed out that the glitch was the third in one month and fourth since June 2013 to have hit RBS and NatWest card holders.

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