Lost/stolen credit & Debit Mastercards

What to do if your Westpac credit or debit card is lost or stolen. How to get emergency assistance if you are overseas.

1. How to block a credit card. 

You can now temporarily block your card through Westpac One. Card Blocker allows you to temporarily block and unblock your card instantly if it's been lost. When you find your card you can simply unblock it. To learn how, click here.

2. Report a lost or stolen credit card or Debit Mastercard® to us immediately

Please contact us immediately if:

  • your credit card or Debit Mastercard is lost or stolen
  • your PIN is disclosed
  • if you suspect a fraudulent transaction

In New Zealand

  • phone 0800 888 111 (24 hours a day)
  • visit your nearest Westpac branch

From overseas

  • call +64 9 914 8026 (24 hours a day)
  • for Mastercard cards and Visa cards, visit any branch displaying the Mastercard and Cirrus acceptance marks or Visa and Plus symbols, as shown on your card

We’ll issue you with a replacement card (a fee of $10 including standard postage applies. International delivery may incur additional courier charges).

Worldwide emergency assistance

Get medical, legal, travel or New Zealand diplomatic services around the world.

For Mastercard cards

  • call Mastercard Global Service™ on +1 636 722 7111
  • international toll charges will apply

For Visa cards

  • for Visa cards call Visa Emergency Assistance on +1 410 581 9994
  • international toll charges will apply

Note: These services do not replace the need for travel insurance.