Good afternoon! I sent the supplier return the goods CL112915896RU. The Russian post writes to me that I have to provide some kind of declaration to the Chinese customs. Is it so? how to do it?

Hi can you advise the status of my parcel, tracking shows it has not moved for 10 days since the last status Transiting via the transit airport. LV241775448CN

Hi, I would like to enquire about the status of EE061116943MY. Could you please kindly check on the status of the above delivery and when will the recipient receive it? Thank you.