any possibility that the apple rep screwed up and unpaired/replaced the wrong pod? i.e your "pair" would now have two pods, neither of which are actually associated with the hardware you have access to
to clarify what I mean: GP lost the right one, but is it possible the replacement pod was never actually associated as the "right" one due to a mixup? In this situation, the charger case would have left and right pods, but neither of them would be associated with the "pair"