retroactive

I recently left UPS, before doing so I filed a grievance for not getting my full raise. Will I ever see any of this retro pay without a fight? Also, off topic from that.. If you are considered on-call and don’t receive a phone call before start time, is it considered a no-call-no-show...

So I have seen many people say that only people who were working on August 1, 2018 will receive a retro check. I’ve also heard many people say that it applies to everyone... I was hired in early September of 2018, will I get a retro check?

I am in the second year of my progression and was given my last raise in October, but under the new contract I should be at $24/hr will I receive a retroactive check of $3/hr difference in pay since October?

I'm on disability now,... if I move to another state, will I still get retroactive pay from the new contract?