Tell us about your complaint

If there’s something we can improve, or you're not satisfied with our products, services, staff, complaint handling process, or how we handle your Consumer Data Right (CDR data), it's important we hear about it so we can make things right. We’ll take your complaint seriously, work with you to address your complaint and try to find a solution that's fair and reasonable. At all times, we follow our complaint handling principles.

Make a complaint

Make a complaint online

How to make a complaint

There are a few ways to make a complaint:

Please tell us:

  1. Your name and contact details (you can make an anonymous complaint if you would prefer)
  2. What your complaint is about, including the products or services you’re complaining about, what went wrong and what you’d like us to do
  3. Any supporting documentation

Find out more

Tell us about your compliment

We love to hear about your positive experiences and when someone in our team makes things easier, quicker or special for you. We’ll pass on the compliment and make sure we keep up the good work.

Give a compliment

Staff compliment

Other ways to get in touch

Visit your nearest branch

Find your nearest branch

Write to us

CBA Group Customer Relations
Reply Paid 41
Sydney, NSW 2001

There's no need to use a stamp - we'll pay for the postage.

Accessibility services

For more info, visit the National Relay Service

Colonial First State (CFS) customers

If you have a complaint relating to an Investment, Superannuation and/or Pension product provided by CFS:

Call 13 13 36

8am – 7pm AEST Monday to Friday (Sydney/Melbourne time)

Premier & private banking customers

If you have a Relationship Manager working with you for your Business, Institutional, Premium or Private Bank accounts, please contact them or your Private Banker in the first instance.

Insurance by AIA Health and AIA Australia

  • Health Insurance provided by AIA Health
    Call 1800 943 010
    8am - 6pm, Mon- Fri (Sydney/Melbourne time)
  • Life Insurance and Income Protection provided by AIA Australia
    Call 1800 491 588
    9am - 5pm, Mon -Fri (Sydney/Melbourne time)

Call our complaints team

8am - 6pm, 7days a week (Sydney/Melbourne time)

1800 805 605 from Australia

+61 2 9687 0756 from overseas1

Things you need to know

1 When calling from overseas using your mobile, standard roaming charges may apply. To avoid roaming charges, call the international operator in the country you’re in from a land line and provide them our number.