I work the preload shift loading package cars. About two weeks ago I was having a conversation with my previous pt time sup about the new area I was moved to. He was asking how I was doing there, etc. He suggested that I start working 10 minutes earlier to keep up with the bulk that tends to come in immediately after the flow begins. I told him there's no way I'm going to work 10 minutes each day for free. He said that a sup can select a person on their belt to start 10 minutes earlier. My actual belt sup was with us at the time, and agreed to this. Before the end of the day, he confirmed with me that I would be coming in early to start at 4:10 the following work day. Also, when that day came, I asked him myself if I was to start early and he said yes. Fast forward to Friday two weeks from then. I look at my paycheck and I'm 50 minutes short. (I started keeping track of my time when this began) Obviously, this pt time sup never got any authorization to do this, and never even spoke to his full time sup about it. Either he lied to me or simply didn't understand how to do his own job. I spoke to a HR guy about this, and he said he would talk to the full time sup, but that I also need to talk to her about it myself. On my way out I didn't see the full time sup, so the following Monday I spoke to her about it. Apparently the HR guy never even talked to her, or at least she pretended to know nothing about it. I told her of the situation and she said she'd get back to me. I asked her today if she had any new information for me, and she did not. But she did say not to start 10min early anymore, that my start time was 4:20. How should I proceed from here? If I file a grievance, will it hold up? I know that a pt time sup has no authority to start anyone early. But it's not my responsibility to verify this stuff with multiple supervisors. It was -his- responsibility, however, to confirm with a full time sup that I can do this. I feel like if I talk to the preload manager, he won't be very cooperative on the matter. Should I even bother talking to him before speaking to my steward?