The app went down at around 7:00am, prompting more than 2000 reported issues on the DownDetector website, of which 96% related to mobile login.Online banking services, card payments and ATM withdrawals were not affected by the "technical issues".The bank’s social media team spent the morning fielding complaints from frustrated customers:

@santanderukhelp @santanderuk Amazing how your “new and improved” mobile banking app continues to be worse than your old one. I see this morning that it’s not working yet again. Utter rubbish.— Chris (@ChelseanutChris) September 23, 2024

@santanderuk #CustomerExperience #loginfail #Switch Appalling service from this bank. Not able to login to my account been trying since 6am! Had urgent transactions to deal with. Started switch process.— Karen (@KarenBarbados) September 23, 2024

The outage, which comes shortly after similar issues for Lloyds and NatWest customers, arrived on the day new research shows that Brits are less bothered about bank branch closures than people in the US and Europe.The report, commissioned by consumer credit information provider CRIF, found that less than a quarter of UK consumers would choose their banking provider on the basis of them having a branch nearby.