I am a pre-loader. I am often asked to drive in the morning they send me home to change and shave. Since i am fairly new, I am always riding with a supervisor. The supervisor asks how much time i had off between preload and driver start time. It is usually around thirty minutes . After reviewing my time one week i found out my time was short. I took a 30 minute lunch with the sup. the sup. went into the system and changed my lunch from 30 min. to an hour. I thought this couldn't be the first time this has happened. Another supervisor had looked back and found out other times have been changed. I have told i would be compensated but i am they would do that in the first place . I work as hard as i can every time i'm working and for them to do this i feel a betrayed. i haven't told any union stewart yet. And am looking for advice from anyone willing to give it. The biggest thing is i am begging to get my seniority as a cover driver and don't want to stir the pot too much because my main priority is to get my seniority and go full time.