
Glitches have hit customers of RBS and Natwest banks, with many having their cards denied at Tesco petrol stations.
The fault appears to have been caused at the Tesco end of operations and be limited to pay-at-pump transactions with customer pins being denied.
Tesco said: "We are investigating reports of problems affecting some of our pay-at-pump services. We apologise to our customers for any inconvenience caused."
The technical glitch impacting the bank users comes after a series of technical issues over 2013.
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