So you sent a Flat-Rate eBay satchel via Click and Send, you chose the delivery option ‘If premises unattended place a card in the post box and leave parcel at neared AP outlet’. Those instructions were ignored and the parcel sent missing.   Here's how I handled that very same scenario ....   http://www.australiapostmonitor.me/when-a-parcel-goes-missing/   Mention that you will be taking this incident to the PIO and see what happens next.

That could be me, travelling! It's an identical situation.

Thankfully, it's only taken 2 weeks of "negotiations" with them for them to offer a refund but still, it's appalling customer service.

It's no wonder the option for the recipient to be carded has been removed from C&S. I'll put money on it never coming back as an option either.