Customer care

How do I contact CMOBILE customer care?

CMOBILE customer care is open 9am to 6pm Monday to Friday. Simply dial 1300 545 000 (a free call from your CMOBILE) or 126 222 on a C Red plan. Alternatively you can email and one of our team will respond to your query within 24 hours.

I’ve lost my handset. What do I do?

Contact CMOBILE immediately. We will bar your SIM, and send you need a new one if required.
If you’re overseas, you can call us on +61 490 008 889.

What is a PUK code?

A PUK (or PIN Unlock Key) is a security feature that protects the data on your SIM. If your PIN code is entered incorrectly 3 times, you will require the PUK code to unlock your SIM. Your PUK code is not recorded anywhere. If you are required to enter a PUK code, please contact our team on 1300 545 000 or and we will be happy to provide your PUK code. Please note – If a PUK code is entered incorrectly 10 times, the SIM will be permanently blocked. If this happens, please let us know and we will send you a new SIM.

How do I bar premium SMS?

You can bar all Premium SMS services on your mobile, so that you won’t receive, be charged for, or be able to use services after the barring is activated. There is no charge to activate barring and it will not restrict your access to other services. To bar premium SMS, simply dial 1300 545 000 or email

How do I check my usage?

To check your usage, simply go to and log in to the My CMOBILE section with your account passcode. Your usage will usually be updated within 48 hours. Please note – Some types of usage, such as overseas roaming may take longer to be received.

Do I need to update the settings on my handset?

Each network has its own unique settings that allow you to access the internet. These settings differ slightly from handset to handset. CMOBILE will send you the required settings for your handset as part of the registration process. Of course, if you are unsure, you can always contact us on 1300 545 000 or