Reporting part-time earnings while on benefits (update)

I work some days through a staffing agency while still certifying. This is my first time dealing with any of this. The form asks for gross earnings, which I do not see until later. Who can I ask without risking my claim?

Keep everything in writing and save the confirmation numbers. It made the follow-up calls so much easier.

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