Online banking

"I could cry. I changed to you when Barclays had a major breakdown on payday," one X user said in a reply to a Lloyds post about its mobile and online banking issues.

In one of the agency's more notable cases, it fined banking giant Wells Fargo $100 million for the behavior of 5,300 employees who since 2011 had opened fake banking and credit card accounts and created online banking profiles in order to meet Wells Fargo's quotas.

As she set up the payment on her online banking, her husband had searched online for the correct number for the court and called it - but was number 30 in the queue.

On Friday when the outage began, customers told the BBC they were having trouble with mobile and online banking and making essential payments.

On Saturday afternoon, Barclays' website said problems with its app and online banking were ongoing, and warned customers that they may face issues making and receiving payments.