Originally Posted by
Kmxu
If you want to make it absolutely sure, you can remove the PlusPoints upgrade request (if no segment has been cleared) and re-apply the PlusPoints to your itinerary.
Good luck.
I had to cancel the PlusPoints request on the return flight when I saw PZ space about two weeks ago. On my reservation, I only had the choice of cancellation for the outbound although the outbound was cleared at booking. So, I clicked the cancellation. It did cancel the request for return flight and did not mess up with the outbound.
Cheers!