Just to update you, I eventually got my ORC. Process was straight forward took about 2 weeks back/forth of email got asked for eticket and boarding pass... initially they denied saying they couldn't see my flight record, and I had to explain it was "original routing credit" for second time. I also attached a confirmation from CX that flight was cancelled to an extent as proof.

I think QF FFP service center is a lot more humaine and understanding than the @#$% at CX I had to deal with in past. I'm so glad I made the switch.