I've received optus sim card on Tuesday 28 February and called in to activate it around noon.
Optus sim card was not conected after 6 days passed.
Still be able to use vaya sim card until Monday 6 March, and after I called optus around 10 am, both sim card, vaya and optus were disconnected after hang up a few minutes and being told to wait maximum 4 hours.
But still disconnected until 9am on Tuesday 7 March.
Now my sim has already activated through live chat.
Happy to hear it's all sorted!
I've responded to your PM about this.