I wasn't going to say anything, no doubt the tone of this post will be unacceptable. But
Please stop over thinking this stuff!
The minimum requirement is quoted below. The 50% should be earned if:
- Meeting the Aquire business purpose requirement.
- the flight:
- has a QF flight number
- is operated by Qantas, Emirates or American airlines (and possibly other airlines but that's not clear)
- The ticket:
- was purchased in Australia
- has a number starting with "081"
The port of departure for a flight is, almost, entirely separate to the ticket purchase location. Obviously if your itinerary starts outside Australia it is unlikely to have been purchased in Australia.
If your bookings meet those requirements then they should be eligible for the bonus.
/rant