Amazon states the carrier has picked up the package and gave me the tracking number. But when I search the tracking number, it states that's it cannot be found. How can I find the status of my package?

If my package left China on July 7th, then why is it taking so long to fly it to the USA useing e-packet? It should have been in US customs by now or was it on a slow plane that somehow is taking over 15 days to fly it here. I just don't understand the lengthy overseas flight. My tracking number is LK289331253CN.

My irder was shipped on Feb 19, and it shows not found. It is now Mar 9, and It still shows as not found. When will it be found, and when will I receive it? I swear every time someone uses this service to ship it gives me hassles.