To change your password on cos.net.au, follow these steps:
1. Go to the COSnet login page
2. Navigate to the login section
3. Enter your email address in the login field
4. Click on 'forgot your password'
5. Check your email for a reset password link. If you can't find any reset email in your inbox, check your spam or junk folder.
6. Follow the link in the email to reset your password. You will be able to enter a new password and confirm it.
If you still encounter any issues during the process or if you need any further assistance you can connect with one of our representatives on 1300 8822 44, live chat or customerservice@cos.net.au.