Reporting part-time earnings while on benefits after 8 years as a delivery driver

I picked up part-time shifts as a delivery driver and I am confused about how to report them. It has been a long 3 weeks. Sometimes my paycheck is late by a week. Who can I ask without risking my claim?

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

The claimant handbook has worked examples for part-time pay. Mine was clearer than the phone line.