http://track-chinapost.com/startairmail.php shows the parcel was shipped on May 9. it is waiting for flight space from Guangzhou to Russia. please wait one or two more weeks.

this kind of track number starting with U is china post ordinary parcel. you can track its shipment effect date and original post office in http://track-chinapost.com/startairmail.php .

This is a slow and cheap service for low value item. China Post will not scan and update its status after it left first post office. so you can not see new status and know where it is now. china post ordinary parcel might take 4 to 12 weeks to reach your country.

Quote from Trackmytrack on June 6, 2018, 22:55
2018-06-01 15:30:00 China EMS Ltd. 佛山international EMS Corp 跨collected (collector::陈敬阳,Phone :15915239505)
2018-06-01 20:43:35 left 佛山 going to Guangzhou
2018-06-02 01:36:07 left Guangzhou going to Madrid (in transit )
2018-06-05 12:13:00 arrive Guangzhou airport Processing Center (in transit )

Why did my parcel return to China? Help pls
Track N° LZ397124511CN

LZ397124511CN has not even arrived Spain. It is still waiting for flight space from Guangzhou to Madrid. Waiting time can take 7 to 20 days. Everything is normal, no need worry.