Hello, the package I mailed with tracking number LS008417565US is showing the message "ChengduCity,Waiting for Customs Declaration by Addressee" and "成都市，待收件人向海关提交申报材料，【成都市国际报关行】，电话：028-85885101"
According to a friend of mine, the recipient said they have not received any notice and have been unable to reach anyone at the number provided above. What should they do in order to receive the package? Or is there anything I can do to help move the package along?