How do you report hours that vary week to week? after 13 years as a machine operator

I work some days through a staffing agency while still certifying. There are 13 people counting on me, so I am trying to be careful. 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 2 months ago, and it got easier once I kept a simple log of every call and form.

Report honestly and keep your stubs. An honest small error is much easier to fix than a missing report.