Hello. I have been at UPS for almost for years. I work on the night sort. About 2 months ago my supervisor asked people based on the seniority list who could start at 5:00 instead of 5:30. I wasn't in a position to do it then so I had to decline. Since then my situation has changed and I would like to bump the person doing it now who I have more seniority than. I asked my supervisor and she said I was okay to take over, but the employee I would be bumping is saying that since I said no I can't bump him. Is this the case. As of now he is getting more hours on the same shift. I have more seniority.