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Send a secure message
Secure Messages are private messages between you and Cynergy Bank.
You can use both Online Banking and the Mobile Banking app to send and read Secure Messages. For more help, take a look at our and FAQs.
Fuss-free and fast way to amend your details
There is no need to call us, you can now amend your personal details using your Mobile Banking app or Online Banking :
Name and title
Address
Email
Mobile number
National Insurance number
And here’s what you’ll need:
To update your address:
A valid UK driving license or government-issued photo ID (like a passport or ID card)
AND
A recent proof of address (dated within the last 3 months), such as a bank statement, utility bill, council tax bill, credit card statement, or tax return.
To update your name or title:
A valid UK driving license or photo ID
AND
Proof of your full name change (e.g. marriage certificate, deed poll, or decree nisi).
If it’s just a correction (like a typo), you can upload a recent proof of address instead.
This new approach means no more calling, just a few clicks and you're done.
Report fraud or a lost or stolen card
Tell us straight away if your card has been lost or stolen, or if you think you have been a victim of fraud, by calling 0345 850 5555 and pressing Option 1. Check our page for advice and contact information.
Phone us
Our Customer Service lines are open from 9.00am to 6.00pm Monday to Friday (). Please note, we are closed on weekends and bank holidays.
Phone 0345 850 5555 (or +44 (0)20 3375 6422 if you're calling from outside the UK). Calls may be recorded for monitoring and training.
Hearing or speech impairment?
Contact us using .
Request a call back
If there are higher-than-usual wait times, rather than wait on the phone, you may request a call back from Customer Service. If you would like a call back within the next working day you can press ‘1' at any time. Just leave your phone number, and we will return your call when the next agent is free to assist you.
When we call you back
If our Customer Service team needs to call you back, their call will come from one of these phone numbers:
+44 20 3901 7531 or +44 20 3892 4149.
Our regional offices
Visits to offices are by appointment only. Contact your Relationship Manager to arrange.
Opening hours are 9.15pm – 5.15pm, Monday to Friday.
Birmingham
112 Colmore Row
Birmingham
B3 3AG
Manchester
Manchester Business Centre
3 Hardman Square
Spinningfields
Manchester
M3 3EB
Glasgow
1 West Regent Street
Glasgow
G2 1RW