How to provide evidence for missed courier handover scans without affecting the claim process?

This week, after the linehaul arrived, there were three packages in the cage cart, but the system showed no inbound scan. The customer is pushing for delivery confirmation, and the claims team is asking for the scan chain. Simply saying 'the package is here' isn't convincing enough on-site. I first cross-referenced the trailer number, pallet ID, and manifest to confirm it wasn't the wrong truck…