Reporting part-time earnings while on benefits after 7 years as an accounts payable clerk

I picked up part-time shifts as an accounts payable clerk and I am confused about how to report them. The form asks for gross earnings, which I do not see until later. Did anyone get an overpayment notice from a mistake?

I estimated and then checked my pay stub. When there was a small difference I wrote to the agency to correct it.

Thanks for writing this out. I went through something close to it 4 months ago, and it settled down once I kept a simple log of every call and form.