I am signed on the extra work list. Preload was minus employees, I was not called this particular morning. I filed a grievance for not being called in. I recieved a letter from union stating there would be no pay that UPS would abide from now on. A lady was on vacation for 2 weeks back to back. I have been covering for her for 12 yrs. The first week they shorted me 5 hrs. the second week they gave me the 5 but shorted me 2 1/2 hrs. I asked the sup to check it he did and agreed. Told me that he would take care of it. It is not on this check either. Any info would be appreciated.