I started a chat session with Optus from the SIM Only page today, and he proactively offered me a 25% discount on the already impressive $40 plan (w/15 GB of data) and said the Optus Sports Pack was free and included as well, thus $30 per month including 15 GB of data. I accepted and have already received access to the Sports Pack while they port my number.
Here's a screenshot of the chat:
When I inquired further, he said:
"It is a special online chat offer we are offering today"
I wouldn't be surprised if it lasts longer than today.
are you new customer or renew?