What is a Critical Information Summary (CIS)?

Your Optus Critical Information Summary (CIS) is a document that contains detailed information on your Optus product or service.

It includes information such as the monthly charge, inclusions, cancellation and plan changes, billing, using your service overseas, and customer support.

You can search for and download the CIS documents for all Optus products and services here.

Learn how to view your current plan details and Critical Information Summary (CIS) here.