1. This is the tracking of your parcel:
China Post Register Air Mail Tracking System
Parcel No.RS298992586CN tracking result
2016-10-29 09:05:26.0 Dongguan city Post Office eCommerce dept. parcel center received
2016-10-29 09:09:13.0 Dongguan city Post Office eCommerce dept. parcel center customs scan
2016-10-29 09:10:54.0 leaving Dongguan city Post Office eCommerce dept. parcel center ，next station Dongguan center
2016-10-29 10:08:55.0 Guangzhou Transit Station export security scan
2016-10-29 14:47:42.0 Guangzhou Transit Station export customs cleared
2016-10-30 16:37:00.0 arrive Guangzhou Airport
2016-10-30 16:53:40.0 leaving Guangzhou Airport going to next airport/seaport

2. China Post Airmail Parcel Estimate Arrival Time for your country Portugal is between 10 to 31 days.

3. Most definitely the parcel is lost or misplace. You should contact seller and tell him you have not receive your parcel and try to have an arrangement with him.

Thanks.