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Call our Customer Support Team

anytime, 24 hours a day, 7 days a week.

1300 306 397 OR if you're overseas (+61) 2 8288 2890

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Chat with us

We’ll be online between 8am and 7pm, everyday.

Click the 'Live Chat' tab once you log into the Online Service Centre

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Contact us by post

Coles Mastercard
GPO Box 40
Sydney NSW 2001

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Lost and Stolen Credit Cards

1300 306 397 OR if you're overseas (+61) 2 8288 2890

If you’ve misplaced your card, you can temporarily lock your card online to block new purchases.  Click here to find out how to lock your card

The following support services are also available if you wish to contact us

Accessibility support

Hardship Support

For Hardship support please click here.

Family & Domestic Violence

Domestic and family violence refers to a situation where one person in a relationship or family hurts others or makes them feel unsafe. People facing domestic violence will often need help protecting their finances and gaining financial independence. We are here to help.

Some of the forms that domestic and family violence can take include, but are not limited to:

  • Psychological or emotional violence
  • Sexual violence
  • Financial abuse 
  • Physical violence 
  • Neglect
  • Stalking 
  • Threats to harm you or others 

You can call us on 1300 306 397 OR if you're overseas (+61) 2 8288 2890 anytime, 24 hours a day, 7 days a week to discuss your situation.

Domestic Violence Resource Centre
Provides a full list of support services by state and Australian wide. Visit: or

If you or someone you know is impacted by sexual, domestic or family violence, reach out to 1800RESPECT or call 1800 737 732.

Family Relationship Advice Line
For Information and advice on family relationship issues and parenting arrangements after separation, reach out to 1800 050 or visit Family Relationship Advice Line | Family Relationships Online

Provides social and health payments and services, including crisis help and payments. Visit

For more information on NAB’s policy for supporting victims of family and domestic violence click here.

Online Service Centre Registration

To register for the Online Service Centre, go to and click “Register”. You will then be asked to create your username and password.

Credit Cards and Personal Loans complaints handling

More information about our complaints handling process for Credit Cards.

More complaints handling information for Personal Loans.