Adding my experience with this, in case it helps anyone else out there, as this thread helped me!
I was trying to change a family member's Economy award ticket to Business Class. Noticed a Seats.Aero alert email (don't think they do QRPC but I must've set up partner alerts). Jumped on QR app, confirmed new space available. Called PC for help. Agent said I had to cancel myself, and then call back if points not immediately refunded. I asked, "Can I stay on the phone while I cancel and see if they're refunded?" Answer was that I had to call back!
Cancelled online using dedicated button in my PC account area (bloody terrifying, TBH, as was a Saver rate booked a year out).
Points not refunded.
Called back.
System has not processed it, we have no ability to push the points back to you. Just wait 5-7 days.
Explained I was in a bind, reiterated that points seat was teetering on the edge and could vanish at any second... explained that I would never have tried this but the Qatar agent said they can push them straight through if I just call. Explained that I also read online accounts of people who had agents that were able to help them instantly receive their points and rebook another class on Chat. Agent said I should try chat but that they will say the same, nothing can be done until the system processes it.
Tried chat. I have had numerous experiences where QR chat is superior and where their call centres are unhelpful and even incompetent (one, last year, insisting I could upgrade an *award* ticket via the online area).
Chat worked.
Agent offered to manually process refund as indeed it had not yet registered, then was able to push the points to me!
All of this took a while. Very nerve-wracking. Recommend being conservative if you find award availability on an exceptionally busy route and need to cancel award ticket & rebook award ticket using those points. If your agent isn't fast (or competent), you may miss the availability if it's a once-off that's just appeared (BA tells you how many award seats available on QR flights but think this is only for Saver, not Flexi? Not sure). I was also arranging all this at about 1am AEST (for a flight originating in Australia) so hoped less chance anyone would be awake to nab that seat!
Can be done if you're willing to find an agent who will assist you through the entire process. Seems to be faster if you get them to cancel for you, rather than doing it online yourself. Or if you can perhaps ... 'guide' them, if needed (and if they're open to you suggesting how they can do their job
). Obviously the first agent didn't know he could manually cancel for me (and neither did I, at the time)!
Just sharing my experience!