tracking number says item was delivered - not true as I am home every day. How do i find out who has item and if there is a depot in Calgary to pick up . Needed urgently as this is a xmas present.

We have not received a package that was sent via China Post, to our address in Florida, United States. The tracking site says the package was delivered, but it did not arrive at our residence. We have the China Post tracking number, which is: ZA03814739901.
The issue is that when the parcel arrived in the United States it was transferred to another carrier, possibly: USPS (United States Postal Service); UPS; FedEx; DHL; Purolator or some other delivery/carrier service. We have tried to find the package, but the China Post tracking number does not work here. We have been trying to find out who the local carrier was that received the item and a local tracking number. We need to know who the carrier in the United States is and the U.S. tracking number. Without a local tracking number all carriers and the post office cannot track the package. The China Post tracking number is not useable in the U.S. Can you assist with finding out who the local carrier is and a tracking number. The company we bought the item from is completely useless and not helpful at all. Thank you in advance for your assistance.

Hello! i ordered from a parcel from China and it is being delivered by Yanwen, it is stuck after "picked up by a local carrier". i can not figure which local carrier is it. i checked every local carrier and they do not have any information for this package. the package track number is : UK714192605YP