I would like to ask for your help that the item I sent was originally intended for delivery to Macau S.A.R (Postal box 1089). However, I have been tracking the item for a long time, finally I found the item has been stuck in Ningbo's customs for 20 days. Subsequently, it was sent back to Shanghai customs. As of the latest update on 13-Feb, the item is shown as "sent to carrier." Can you please advise me on the status of the letter?
Actually, I have checked with Royal Mail multiple times, and they have informed me that the item is no longer in their care. The latest update on Royal Mail's tracking platform is from 4-Feb, but this status does not match the information provided by China Post. I am unsure of the current location of my item and would greatly appreciate your assistance in resolving this matter. Can you please help me to clarify where my item is located?
Please note that the item is a letter with dimensions of 22.9cm x 16.2cm and not a parcel. Thank you for your assistance.

I have received a notification from China post that my item AG781346471CN is awaiting to be picked up but they did not send me the location of where should I pick up. How do I get that Information.

I had 4 packages being sent out from the same shipper and only received one of the packages. Not sure why there are two different locations and no updates since April. I would like to know where my packages are located as they are important.
~LW528776416CN (Last update April 22, 2020 @ 6:58pm - located in Fuzhou EMS, China)
~LY139275922CN (Last update April 23, 2020 @ 9:22am - located in Zhengzhou, China)
~LW528776291CN (Last update April 26,2020 @ 2:25pm - located in Fuzhou EMS, China)
~LY139277588CN (Processed through Zhengzhou, China/Delivered on May 21, 2020)