My etl who makes up the schedules has consistently scheduled me out of my availability when I first started. After numerous attempts to fix it,he did. I haven't had any problems until the recent schedule.came out and he gave me.a shift that is not my availability. When I approach him about it he tells me in a roundabout way that it is my problem and I could try to.switch with someone. Clearly this isn't ok. So what else can I do.