回複：回複：別太緊張了，USPS的電腦比較爛，但傳遞業務還可以。

several years ago USPS could not find my express maill, that's the material for my wife's visa. I was told the package already shipped to China, that's not their business any more. After about 15 days, the packet was delivered. I think you need to keep on calling them and check the status. Maybe they can figure out where it is soon.