How do you use kingtrans? I just ordered from one of those Instagram ads, I know, and they gave me a USPS tracking. I didn't see it doing anything for what l almost 2 weeks then I check USPS one day and there it is, one day away from me. I had just given up on it. How does kingtrans track a USPS package that's awaiting delivery? If I put in a USPS tracking number, which it hasn't received yet, how can it track it in China? So far my one order from China from a random source was good and my order from WWB US warehouse made it the other day so I really haven't had to worry about it yet.