Mike, I am so sorry man. Agree with hgeifman about getting your CC company involved and it is essential for high risk purchases to use a CC instead of Zelle or a bank debit as a purchase even if it means paying more. In my south Florida neighborhood, the USPS has been a disaster with rife incompetence and disregard for packages. I had made a high value vinyl purchase from abroad that was stolen a few years ago. It was supposedly “delivered” during a mail hold period but my trustworthy doorbell cam registered no delivery on that day. I did everything—drove across town to the south equivalent of my address, ransacked my neighbors, complained to USPS staff and the postmaster (who just covered for her incompetent employees), filled out forms etc etc. Because it had originated from abroad the seller was unable to initiate a claim.
Amazon uses USPS for “last mile” deliveries and every time it ends up in the USPS system it is delayed without fail. USPS media mail has been great for me as a record collector. It has been a stalwart American institution in the past. I realize there may have been some purposeful sabotage of the institution as well but it is not to be trusted these days.
Because I still make many online purchases and porch piracy in my neighborhood, I ended up getting a PO box. That helped. But for high value purchases, DHL (I think the best), UPS and FedEx only.