Customers of Yorkshire Bank and Clydesdale Bank, owned by National Australia Bank, have suffered yet more problems with using their debit cards to make payments and withdraw cash from ATMs this morning.

This time, a ‘hardware issue’ with contractor First Data was cited as the cause.

A spokesperson for the banks said: “Some customer card transactions were affected by an intermittent service issue earlier this morning. This was caused by a hardware issue at our supplier First Data, which is currently being investigated.

“Normal service was resumed by 10am. We apologise for any inconvenience caused.”

In early March, some of the banks’ customers had difficulty using their debit cards after the banks transferred systems operations to external contractor First Data. The problem lasted for about three days at the time, but customers have reported issues with their cards on several occasions since.

The banks said that not all the problems were related to First Data, which had not replied to a request for comment at the time of writing.