Barclaycard
This number is listed by Barclaycard on its own website (Barclaycard customer service (from the UK)).
Source: “numbers for Barclaycard From the UK: 0333 200 9090” (opens in a new tab). Checked 13 October 2026.
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 Barclaycard back on the number on the back of your card, or call 159, which connects you to your bank.