Originally Posted by
AndDee
I have already rang QF to ask to ensure we sit together. The person asked for my booking reference, then asked for the other persons name traveling and said "that's done".
It seemed too easy.....

This is one thing QF do well is linking pax on separate bookings to ensure contiguous seating allocation.
Last time I had to do this was on a PER-SYD return back in February, and a simple phone call to QF QP corporate customer service, gave them the booking references for both pax, and it was done. Both of us checked in online, and the pre-allocated seats were next to each other as expected.