I have a serious situation, the package is missing, though it shown delivered in record. The neighbors and the apartment office do not have it. My guess is that maybe the package get a wrong record in system. I am going to ask the post office tomorrow.
The thing I need you tell me is that, did you send this package and asking for receiver's sign? If this package is not required to be signed, there might be a chance that the post office pre-sign the package and forgot to deliver it.
あなたが言っていた私に必要な物はその小包です。あなたはこの小包を確かに発送しましたか?受取人のサインがあるかどうか聞きましたか?もし小包がサイン不要なら郵便局のほうでチェックして小包の配送を忘れている可能性があります。