<human>: Condense the text into a few key points

So, I placed an order on Amazon (which included a 2TB Hard Drive, which to me expensive enough to not be taken lightly).

I put in my shipping address as my office.  This past Tuesday, I check the status of the order and it says that it was delivered the previous Saturday.  I am confused.  My office is closed on Saturday.

So first I check with my mail room.  Nothing.  I call USPS and open up a case.  They call me back and I am in a meeting, so they leave a message "Package was delivered on Saturday *click*"

I check again with my mail room guys and we look through, no package.  It was clearly never delivered.  Then, I ask what post office our mail is routed through.  I go to the post office and they send me back around to the actual sorting warehouse/facility (couldn't they check back there for me?)  So I go around, check in with the security guard and ring the doorbell at the loading dock.  I finally get a manager and she takes me through the facility (kinda neat to see behind the curtain) and no, my package is not sitting where it should be.  I give her my phone number and she says she will call if she finds anything.  I am not hopeful.

I call back and tell customer service the story again, but haven't heard back from them.

At this point, I am pretty sure my package was lost.  Someone listed it as "delivered" to get it through the system and then put it somewhere where it got pushed to the side.  Does anyone have any suggestions for what course of action I should take?  It was plain old Amazon "Super Saver Free Shipping".  Not sure what I can do.  Thanks so much.
<bot>: USPS lost my package from Amazon and I need to know if I have any options for retrieval or reimbursement.  Thanks!