On March 6, 2025, Santander confirmed that many of its customers were unable to access various banking services, including mobile banking and telephone banking, due to technical issues.

The bank issued an apology for the inconvenience and stated that it was working to resolve the problems as quickly as possible.

Reports of service disruptions began surfacing around midday, with users highlighting difficulties in logging into accounts, making payments, or transferring funds.

According to Downdetector, a platform that tracks service outages, the bulk of reports focused on payment issues.

Santander's official channels acknowledged that customers were facing intermittent problems with payments and urged users to try again later.

The bank specified that cash machines and online banking remained operational despite the issues impacting other services.

The outage reflects a larger trend concerning technology reliability in the UK banking sector.

Recent data from the Treasury Committee indicated that the country's largest banks and building societies have collectively experienced more than 33 days of unplanned system outages over the past two years.

Experts attribute these disruptions to challenges in integrating modern technology into existing, often outdated, banking systems.

In an attempt to manage customer inquiries during this incident, Santander announced it was experiencing a high volume of calls.

The bank requested that customers only reach out for urgent matters to keep telephone lines available for those in critical need of assistance.

The timeline for resolution of the issues was not provided by the bank.