Similar issue.

Sent item, tracking numbers etc, Aust Post state delivered but client states she has not received.

I get a strike as she has lodged not received with ebay.

Get a strike while the dispute is still open!

Proof of shipment given, Aust Post state delivered!

Still talking to her.

Maybe she should check at her local PO.

What am I ment to do?

New system is a little bit "stupid".