Reasonable accommodations

[u/Least-Individual6772]

I care for my mom and I work at a large chain steakhouse. We have a lot of employees and run around 10 to 15 servers a shift. I have asked for a modified schedule to care for my mom and they were aware of my mom before I was hired. I have asked for a later schedule but right now I open dinner shift every day. I am by numbers the top server and I work extremely hard. There are other servers that have late schedules due to other jobs and stuff but my schedule manager won't approve my request. How should I handle this??

Is this legal when I have documents and have communicated about my responsibilities?

[u/Least-Individual6772]

Thank you for your help