Britain's biggest building society has apologised to customers after some struggled to make card payments in the run-up to the weekend.
Nationwide said some people experienced problems for a "limited period" this afternoon.
A statement from the building society said: " This matter has now been resolved and the card payment process is working normally.
"We apologise for the inconvenience this has caused. Internet banking, cash machines and transactions in branch have not been affected."
Nationwide could not say how many of its customers had been affected but it said the problems lasted a couple of hours.
The glitch affected people trying to pay with cards, which could have been online, in store or over the phone.
© 2014 Press Association