Part of our Barclays Bank UK — Complete Guide 2026 hub.
Barclays offers multiple contact channels — in-app chat, approximately 900 branches, and phone lines including a 24/7 free fraud line on 0800 400 100. Here’s every way to reach Barclays, what to do in an emergency, and how to escalate a complaint.
Barclays Contact Numbers
| Purpose | Number | Hours |
|---|---|---|
| General personal banking | 0345 734 5345 | Mon–Fri 8am–10pm, Sat 8am–8pm, Sun 9am–5pm |
| Fraud / lost or stolen card | 0800 400 100 | 24/7 — free to call |
| Business banking | 0345 605 2345 | Mon–Fri 8am–8pm, Sat 9am–2pm |
| Mortgage enquiries | 0333 202 7580 | Mon–Fri 8am–8pm, Sat 9am–4pm |
| Textphone (hearing impaired) | 0345 734 5346 | Same hours as general |
| Calling from abroad | +44 247 684 2100 | 24/7 |
0345 numbers are charged at local rate and included in most UK mobile contracts’ bundled minutes. 0800 numbers are free from UK mobiles and landlines.
How to Contact Barclays
Barclays App Chat
The quickest route for most non-urgent queries. Open the Barclays app → Help → Chat. You start with a virtual assistant — type “speak to someone” to connect to a human agent during operating hours.
In-app chat is useful for: account queries, direct debit questions, statements, limit changes, and general information.
Online Banking Secure Message
Log in to Barclays Online Banking at barclays.co.uk → Help → Send a message. Responses typically arrive within 24–48 hours. Best for non-urgent queries where you want a written record.
By Phone
For complex issues or anything requiring identity verification, calling is the most reliable option. The general number 0345 734 5345 reaches personal banking — expect longer waits during peak hours (Monday mornings, late afternoons).
For fraud, always use the dedicated 0800 400 100 — it is prioritised, free, and available at any hour.
In Branch
Barclays operates approximately 900 branches across the UK — one of the largest physical networks among UK banks. In-branch services include:
- Opening accounts
- Card replacement
- Large cash withdrawals
- Mortgage and savings appointments
- Complaint resolution in person
Find your nearest branch and opening hours at barclays.co.uk/branch-finder. Most branches open Monday to Friday 9am–5pm and Saturday 9am–1pm.
Reporting Fraud to Barclays
If you suspect fraud or your card is lost or stolen, act immediately:
Step 1 — Freeze your card in the Barclays app:
- Tap your account → Manage card → Freeze card
- Takes effect instantly; reversible at any time
Step 2 — Call 0800 400 100 (24/7, free):
- The Barclays fraud team will guide you through blocking the card, reviewing recent transactions, and raising a dispute
- Do not delay — the sooner you report, the better your recovery prospects
Step 3 — Change your Barclays Online Banking password as soon as it is safe to do so
Your Fraud Reimbursement Rights
Under Payment Systems Regulator (PSR) rules effective October 2024, Barclays must reimburse most victims of authorised push payment (APP) fraud — where you were tricked into transferring money to a fraudster.
Barclays will never:
- Call you and ask you to move money to a “safe account”
- Ask for your full PIN, Online Banking password, or one-time passcodes
- Send someone to collect your card or cash
If any of these happen, it is fraud. End the contact immediately and call 0800 400 100.
Making a Formal Complaint to Barclays
Step 1 — Raise with Barclays directly
Contact via any channel:
- App chat
- Phone: 0345 734 5345
- In branch
- By post: Barclays Bank, Leicester, LE87 2BB
Barclays must acknowledge within 5 business days and provide a final response within 8 weeks.
Step 2 — Financial Ombudsman Service (FOS)
If Barclays’ response is unsatisfactory — or 8 weeks pass without a final response — escalate to the FOS at no cost:
- Phone: 0800 023 4567 (freephone)
- Website: financial-ombudsman.org.uk
- FOS decisions are legally binding on Barclays
You must first give Barclays the opportunity to resolve the complaint — the FOS will not accept a referral before this.