1. Please next time provide tracking number, it will be more easier for us to find out what is going on with your parcel.

2. What I learn so far Flight KE 0828:
Shenzhen · to Seoul ·
Flight 0925:
Seoul · to Amsterdam ·

3. So I guess your country is Amsterdam, then it will have to go through Customs Office in Netherlands, then given to Netherlands Post for delivery.

Hope this help.

1. No that is not right, none of your parcel are on the same plane. You should track all your parcel from this site:
http://www.track-chinapost.com/en

2. This is the full tracking:
China Post Register Air Mail Tracking System
Parcel No.RF361073557CN tracking result
2016-09-23 10:10:02.0 Electronic Data Received
2016-09-25 15:15:39.0 Shenzhen city international parcel process center received
2016-09-25 18:53:00.0 Shenzhen city international parcel process center customs scan
2016-09-25 21:05:00.0 leaving Shenzhen city international parcel process center
2016-09-26 00:08:54.0 Shenzhen Transit Station export security scan
2016-09-26 10:28:15.0 Shenzhen Transit Station export customs cleared
2016-09-27 11:25:00.0 arrive Shanghai Int'l Airport
2016-09-27 12:15:27.0 leaving Shanghai Int'l Airport going to next airport/seaport

3. The other full tracking:
China Post Register Air Mail Tracking System
Parcel No.03768331225 tracking result
2016-09-23 08:43:10.0 Electronic Data Received
2016-09-26 19:02:30.0 Shenzhen city international parcel process center received
2016-09-26 19:42:00.0 Shenzhen city international parcel process center customs scan
2016-09-28 19:42:00.0 计划going to next airport/seaport ，计划航班号KE0828-0925，计划起飞时间12:45 (Shenzhen - Seoul - Amsterdam)

4. The other full tracking:
China Post Register Air Mail Tracking System
Parcel No.RS244644968CN tracking result
2016-09-24 20:19:43.0 Dongguan Post Office 跨境电商international parcel center received
2016-09-24 20:23:39.0 Dongguan Post Office 跨境电商international parcel center customs scan
2016-09-24 20:28:48.0 leaving Dongguan Post Office 跨境电商international parcel center ，next station Dongguan center
2016-09-24 23:30:52.0 Guangzhou Transit Station export security scan
2016-09-25 10:09:08.0 Guangzhou Transit Station export customs cleared

5. Parcel RF361073557CN is leaving:
2016-09-27 12:15:27.0 leaving Shanghai Int'l Airport going to next airport/seaport

6. Parcel 03768331225 is leaving:
2016-09-28 19:42:00.0 Shenzhen going to next airport/seaport ，计划航班号KE0828-0925，计划起飞时间12:45

7. Parcel RS244644968CN is leaving from:
Guangzhou

8. For parcel 1081105129608, it's turkey Post system:
Number: 1081105129608
Origin Country: Turkey
2016-09-24 05:06 Origin, in order to prepare for Stage/Item Is Pre-advised by

9. For parcel 1191000673888, No tracking is available so far.

Hope this help.