Assume nothing you’ve read in this thread is accurate until you’ve researched it.
Before I retired the was a notice posted on our bulletin board of a change in policy. It stated that unless a PT’er had ON FILE a letter informing FedEx that one had: 1)another job, 2)school, or 3)were caretakers of children or parents, that they could be drafted for additional hours based on operational needs.
I can’t verify that it was ratified and put into policy officially, because it had no bearing on me.
Just advising you to make sure you’re on solid ground before you push back.