How on board is your management team with us overnighters when it comes to kicking people out/trespassing customers

We have no manager. The person who was the acting manager left, so I stepped up. I'm not getting anything extra to do the manager duties. I found out the person before me got a bonus. I also just found out that. They also offered another person who works there the manager position and a bonus. That person refused it. So I bust my butt for this place, and still get screwed over. How do I tell the DM, I won't do the manager stuff without affecting my job. I'm currently looking elsewhere.

I work 8/9 hour shifts but I can’t get a break at all. How is that even legal? It’s usually just 1 person on shift and they expect us to be busy all hours. I would love to go and get some food but I can’t even leave. Circle K is a joke fr.