This covers lost or damaged packages. Without this add-on we are not responsible for lost Items. All lost in transit claims must be submitted and filed through USPS.com as that is the postal carrier we utilize.
If tracking shows that the item was delivered, but you never received it, most likely stolen, we cannot replace it. Unfortunately the post office nor we are responsible for stolen packages. You would need to add-on signature confirmations to ensure items are handed and signed for to prevent stolen packages.