Banks and building societies

Santander UK phone numbers

Edited by Richard BarkerChecked 13 October 2026

Santander UK publishes 6 numbers for you to call on its own website. We list each one with the page it is on (5 pages in all), a short quote from that page and the date we checked it.

Its published lines cover: Customer service and Telephone Banking; Fraud and scams (freephone, fraud team 24 hours); Complaints; Reporting fraud or a scam from abroad (24 hours); and 2 more.

Opening hours are shown where Santander UK gives them on the same page.

We checked these pages on 13 October 2026.

Contact Santander UK How to check a call

Numbers to call Santander UK

What each line is for, as Santander UK describes it, with opening hours where it gives them.

0330 912 3123
You call them on this number
Customer service and Telephone Banking
Hours: 7 days a week 8am to 6pm
Source: “to Sandi, or call us on 0330 9 123 123” (opens in a new tab). Checked 13 October 2026.
0800 313 4321
You call them on this number
Fraud and scams (freephone, fraud team 24 hours)
Source: “on 0330 9 123 123 or 0800 313 4321” (opens in a new tab). Checked 13 October 2026.
0800 171 2171
You call them on this number
Complaints
Source: “× You can contact us on: 0800 171 2171” (opens in a new tab). Checked 13 October 2026.
0151 264 8725
You call them on this number
Reporting fraud or a scam from abroad (24 hours)
Source: “a fraud or a scam Call +44 1512 648 725” (opens in a new tab). Checked 13 October 2026.
01908 238013
You call them on this number
If someone may already have your security details (calling from abroad)
Source: “have your personal security details Call +44 1908 238 013” (opens in a new tab). Checked 13 October 2026.
01908 237963
You call them on this number
Report a lost or stolen debit card from outside the UK
Source: “For debit cards, call +44 1908 237 963” (opens in a new tab). Checked 13 October 2026.

What Santander UK says it will never ask for

“we’ll never call you to ask for your PIN, Mobile or Online Banking passwords” (source (opens in a new tab))

How scams that copy banks and building societies work

UK Finance describes the usual pattern: a caller says they are from your bank or the police, tells you there has been fraud on your account, and asks you to move your money to a "safe account". The criminal controls that account.

Stop Scams UK runs 159, which puts you through to your bank and cannot be spoofed. Hang up and call 159 or the number on the back of your card.

This could still be a scam call

Criminals can make their number look like a genuine one (this is called spoofing). If someone calls from this number and asks for money, bank details, a code or passwords, hang up. Then call Santander UK back on the number on the back of your card, or call 159, which connects you to your bank.

Safe ways to check

Call 159 (opens in a new tab): Stop Scams UK runs 159, which connects you to your bank. It cannot be spoofed.
Santander UK's own contact page (opens in a new tab): Where this number is published.
Report Fraud (opens in a new tab): Report fraud and cyber crime in England, Wales and Northern Ireland. In Scotland, call Police Scotland on 101.
Forward scam texts to 7726 (opens in a new tab): It is free, and reports the message to your mobile provider.
How number spoofing works: Why a genuine number on your screen does not prove who is calling.

Questions about Santander UK’s numbers

What numbers can I call Santander UK on?

Santander UK publishes 6 numbers for the public to call. They include: 0330 912 3123 (Customer service and Telephone Banking); 0800 313 4321 (Fraud and scams (freephone, fraud team 24 hours)); 0800 171 2171 (Complaints). Check the source page for each one before you call, as numbers and opening hours change.

What does Santander UK say it will never ask for?

Santander UK's own website says: "we’ll never call you to ask for your PIN, Mobile or Online Banking passwords". If a caller asks for these things, hang up.

Does Santander UK publish a number on its own website that is not listed here? Suggest a number for Santander UK.

Sources and checks

This page relies on:

Checked on 13 October 2026. Read how we build the directory. How we check our information. Spotted a mistake? Tell us and we will put it right.