Wage reporting when hours change weekly - any advice?

I picked up part-time shifts as a nurse's aide and I am confused about how to report them. I would rather hear the honest version than the polite one. Pay posts on a different day from when I work. Who can I ask without risking my claim?

Thanks for writing this out. I went through something close to it 11 months ago, and it settled down once I kept a simple log of every call and form.