You can change your contact number and One Time Passcode (OTP) mobile number in the Mobile Banking app by chatting to Sandi, our digital assistant.
- Log on to the Mobile Banking app.
- Tap ‘More’ in the bottom-right corner.
- Choose ‘My details and settings’.
- Tap ‘Review contact details using chat’.
- A new chat window will open and you’ll be asked what you’d like to change.
- Follow the on-screen instructions to change your details.
You can also change your number in Online Banking.
- Log on to Online Banking
- Go to the ‘My details & settings’ tab.
- Click ‘Change personal details’ in the left-hand menu.
- Choose ‘Change contact details’.
- Add your mobile number without the first zero and with no spaces (for example, 7712123918), then click ‘Continue’.
- We’ll send a One Time Passcode (OTP) to your registered mobile number.
- Enter your Security Number and OTP.
- Click ‘Confirm’ to change your number.
You can also visit our contact us page for more options on how to change your personal details.
Sign up for Online Banking
Not signed up for Online Banking? Read our Online Banking page to learn how
Changing your account alerts
Some of our alerts are there to help you manage your money and reduce or avoid charges. The mobile number registered for your account alerts is not automatically updated once you change your details. Instead, you’ll need to update the mobile number for account alerts separately.
To do this, simply:
- log on to Online Banking
- click ‘Account services’
- choose ‘Account alerts’ in the left-hand menu and update your number.
In our branches
You can also change your contact details by visiting one of our branches with your debit or credit card. You’ll also need proof of your ID with a signature such as a valid passport or full UK driving licence.
If you already live in the UK and are moving to another UK address, you can change your address online.
- Log on to Online Banking
- Go to the ‘My details & settings’ tab.
- Click ‘Change personal details’ in the left-hand menu.
- Choose ‘Change address’.
- Add your new address and click ‘Continue’.
- We’ll send an OTP to your registered mobile number.
- Enter your Security Number and OTP.
- Click ‘Confirm’ to change your address.
Please bear in mind that you cannot change your address online for certain products such as your mortgage and insurance.
You can also view your address in Mobile Banking with our digital assistant Sandi, available 24/7.
- Log on to Mobile Banking
- Click 'More’ then 'Help and contact us’.
- Choose ‘Chat with us’ and ask to view your address.
If you’d like more information on how to change your personal details, please visit our contact us page.
Sign up for Online Banking
Not signed up for Online Banking? Read our Online Banking page to learn how
Joint accounts
This change will only update your own address details. All other account holders may need to update their address separately. Until they notify us, all their correspondence including cards and statements, will be sent to their previous address.
In branch
You can also change your address by visiting your local branch with your debit or credit card. You’ll also need proof of your ID with a signature such as a valid passport or full UK driving licence.
You can change your email address in the Mobile Banking app by chatting to Sandi, our digital assistant.
- Log on to the Mobile Banking app.
- Tap ‘More’ in the bottom-right corner.
- Choose ‘My details and settings’
- Tap ‘Review contact details using chat’.
- A new chat window will open and you’ll be asked what you’d like to change.
- Follow the on-screen instructions to change your details.
You can also change your email in Online Banking.
- Log on to Online Banking
- Go to the ‘My details & settings’ tab.
- Click ‘Change personal details’ in the left-hand menu.
- Choose ‘Change contact details’.
- Add your new email address and click ‘Continue’.
- We’ll send an OTP to your registered mobile number.
- Enter your Security Number and OTP.
- Click ‘Confirm’ to change your address.
If you’d like more information on how to change your personal details, please visit our contact us page.
Changing your account alerts
You’ll need to update the email address for account alerts separately. To do this, simply:
- Log on to Online Banking
- Click ‘Account Services’
- Choose ‘Account alerts’ in the left-hand menu and update your email address.
In our branches
You can also change your contact details by visiting your local branch. You’ll need to bring your account’s debit or credit card and proof of ID with a signature such as a passport or driving licence.
If you've changed your name, you'll need to fill in a change of details form (364 KB) and take it into a branch along with some personal ID. If you’re looking to change your name after getting married, you’ll also need to take your marriage certificate.
Take a look at the list of personal ID documents we can accept depending on your circumstances. To view this list, you may need to download Adobe Reader
No printer? No problem, you can get a copy from your local branch
You can also visit our contact us page for more options on how to change your personal details.
You can add additional credit cards for family members who live at the same address and are aged 18 or over. What’s more, you can add up to 3 additional cardholders for no extra fee. You can add additional cardholders by speaking to our digital assistant Sandi, available 24/7.
In Mobile Banking:
- log on to Mobile Banking
- click ‘More’ in the bottom-right corner then ‘Help and contact us’
- choose ‘Need help? Chat with Sandi 24/7’
- ask to add additional cardholder and follow the steps.
In Online Banking:
- log on to Online Banking
- click 'Help & Contact Us’
- choose 'Chat with us'
- ask to add additional cardholder and follow the steps.
If you’d like more support, please visit our contact us page.
If you’re moving to or from an overseas address we’ll need you to print off our form, fill it in and post it to us.
What you’ll need
- Our change of details form (364 KB)
- A valid form of ID
- Proof of your change of address.
You can find out what we accept as proof of your change of address on page 2 of the ID document above. If we accept the foreign version of any document, you’ll see it marked with an ‘F’.
Please post your change of details form with a copy of your ID and proof of address to:
Change of address abroad
Santander Banking
Operations,
Sunderland SR43 4FP
What else?
There may be things you need to know about your relationship with us changing if you’re moving out of the UK.
Take a look at our moving abroad page to learn more.
And if you need to change any other of your details, check out our contact us page to find out how.
We may have asked you to complete a Change of Details form (364 KB) after opening a new account.
This is because, some details from your application do not match those we have for you as an existing customer. We need you to provide us with some details and ID, so that we can send you new Online, Mobile or Telephone Banking details.
If you have any, you’ll be able to use your existing details to see your new product, after you send the information we need.
We need you to:
1. Fill in and return a change of details form (364 KB) to the address listed below.
2. Photocopy one item of ID from list 1 and one from list 2 (321 KB), from the list of ID we can accept. Please provide clear black and white photocopies, and don’t send us originals.
3. When you send these to us, include a copy of the email you received, or write your account number and sort code on each document.
Please send us your completed change of details form and photocopied ID documents back to us at:
Santander Operations
Sunderland
SR43 4FP