Lost and stolen cards: What should I do?
You should also phone this number if you think someone has discovered your PIN or if you've ordered a new PIN and not received it within five working days.
If you have Barclays Cardholder Protection you can call 0808 100 66 67 (outside the UK dial +44 1904 544 666)† to cancel all your cards, 24 hours a day. UK calls are free and you can reverse charges outside the UK.
Even after you've reported your cards lost or stolen, keep an eye on your accounts and report any transactions you don't recognise immediately to your branch or Telephone Banking.
† To maintain a quality service, we may monitor or record phone calls.