Originally Posted by UALfoLIFE

Unfortunately no, they got lines and you didn't because the system was able to find a better overall solution after taking into account everyone's pre-assignments and preferences. Our PBS is not a seniority based system.

I've had the exact same thing happen to me. Just FYI the PBS guys don't recommend filing a dispute until after youve called them and looked at it together. Call them though at best the system might have screwed up(I doubt it) at worst you'll learn something new. It helped me.