Part of our Nationwide Building Society UK — Complete Guide 2026 hub.
Nationwide offers 24/7 telephone banking alongside one of the UK’s largest branch networks — more than 600 branches nationwide. Whether you need to report fraud at midnight or visit in person to discuss a mortgage, here’s exactly how to reach them.
Nationwide Contact Details
| Purpose | Number | Hours |
|---|---|---|
| General banking | 03457 30 20 11 | 24/7 |
| Fraud / lost or stolen card | 03457 30 20 11 | 24/7 |
| Textphone (hearing impaired) | 03457 30 20 16 | 24/7 |
| Calling from abroad | +44 1604 60 40 70 | 24/7 |
03 numbers are included in most UK mobile bundles and charged at local rate from landlines.
What Makes Nationwide’s Customer Service Different
Unlike most major UK banks, Nationwide is a building society — owned by its members (customers), not shareholders. This member-first model shapes its approach to service:
- 600+ branches — one of the largest physical networks in the UK; Nationwide has committed to keeping branches open until at least 2028
- 24/7 phone support — human agents available at any hour
- In-app and Internet Bank messaging — for non-urgent queries with written responses
- Consistent satisfaction scores — Nationwide regularly places highly in Which? customer satisfaction surveys and FCA service quality results
Nationwide’s size and branch commitment gives it an advantage over digital-only banks for customers who still value face-to-face banking.
Contacting Nationwide In-Branch
Nationwide has branches in most UK towns. In-branch services include:
- Opening and managing accounts
- Cash withdrawals above your ATM limit
- Mortgage and savings appointments
- Complaint resolution
Find your nearest branch: Visit nationwide.co.uk, select Branch & ATM finder and enter your postcode.
Branch hours: typically Monday–Friday 9am–5pm, Saturday 9am–12:30pm. Extended hours at some larger branches. Check your specific branch before visiting.
Contacting Nationwide via the App
- Sign in to the Nationwide app
- Tap Help or navigate to Contact us
- Browse common topics or send a secure message directly to the customer service team
In-app messaging is suitable for statement queries, direct debit questions, account access issues, and general information. For fraud, lost cards, or time-critical matters — always call.
Reporting Fraud to Nationwide
If you suspect fraud or your card is lost or stolen:
Step 1 — Freeze your card immediately in the Nationwide app:
- Tap Card controls → Freeze card — instant and reversible
Step 2 — Call 03457 30 20 11 — the fraud line is staffed 24/7. Select the option for lost/stolen cards or fraud
Step 3 — Change your Internet Bank password as soon as it’s safe to do so
Fraud Reimbursement Rights
Under Payment Systems Regulator (PSR) rules effective October 2024, Nationwide must reimburse most victims of authorised push payment (APP) fraud — where you were deceived into making a transfer to a fraudster.
If anyone contacts you claiming to be Nationwide and asks for your full PIN, password, or one-time codes — it is fraud. Hang up and call 03457 30 20 11 directly using the number from the back of your card.
Making a Formal Complaint to Nationwide
Step 1 — Contact Nationwide
Raise your complaint via:
- Phone: 03457 30 20 11 (24/7)
- In-app secure message
- In branch
- In writing: Nationwide Building Society, Nationwide House, Pipers Way, Swindon, SN38 1NW
Nationwide must acknowledge complaints promptly and provide a final response within 8 weeks.
Step 2 — Financial Ombudsman Service (FOS)
If Nationwide’s response is unsatisfactory — or 8 weeks pass without resolution — refer the case to the Financial Ombudsman Service at no cost:
- Phone: 0800 023 4567 (freephone)
- Website: financial-ombudsman.org.uk
- FOS decisions are binding on Nationwide
You must first exhaust Nationwide’s internal complaints process before the FOS can consider your case.