Hi Gang;
In the NCA world, PAS when offerred initially was linked to a 5 year return of service.....so if you PVR'd (or lost your med cat) in those 5 years, you would revert to your previous basic +FP terms. After those 5 years you could PVR and remain on PAS.
As PAS is meant to be a retention thing...this is actually a reasonable approach, however unfair we see it. Losing PAS as a med thing though is a bummer esp if it was 'on the job' so to speak.
Later...
SFS