1. Your parcel full tracking is this:
Parcel No.RM406077556DE tracking result
2016-05-13 22:34:00.0 Frankfurt export customs cleared
2016-05-17 09:48:42.0 Beijing Transit Station import customs scan
2016-05-17 16:07:16.0 Beijing Transit Station import customs cleared (domestic transit )
2016-05-22 10:06:33.0 Shenzhen Transit Station import customs scan
2016-05-22 15:00:19.0 Shenzhen Transit Station import customs cleared (domestic transit )
2016-05-23 16:55:18.0 arrive 新安dept. delivery office
2016-05-23 18:30:04.0 新安dept. attempt delivery
2016-05-24 13:59:02.0 新安dept. attempt delivery
2016-05-24 13:59:28.0 新安dept. attempt delivery
2016-05-25 11:08:52.0 arrive 新安dept. delivery office
2016-05-25 11:21:18.0 新安dept. 已rejected
2016-05-25 11:21:18.0 Shenzhen city 新安post dept. received
2016-05-25 16:56:31.0 Shenzhen city 新安post dept. customs scan
2016-05-25 17:18:53.0 leaving Shenzhen city 新安post dept. ，next station Shenzhen center
2016-05-26 09:34:29.0 Shenzhen Transit Station export security scan ,remark (16,21)
2016-05-26 10:07:22.0 Shenzhen Transit Station export customs scan (domestic transit )
2016-05-26 10:11:22.0 Shenzhen Transit Station import customs scan ,remark (16,21)
2016-05-26 14:44:38.0 Shenzhen Transit Station import customs cleared (domestic transit )
2016-05-27 17:22:30.0 arrive 西乡dept. delivery office
2016-05-27 20:16:07.0 西乡dept. attempt delivery
2016-05-28 12:56:19.0 西乡dept. attempt delivery
2016-05-28 12:56:33.0 西乡dept. attempt delivery
2016-05-29 12:10:08.0 arrive 西乡dept. delivery office

2. It attempted delivery 3 times with no success, recipient should call China Post: 11185, to find out what is wrong with the delivery or pick up the parcel.

3. When you contact recipient give him the full tracking above. Parcel is at:
2016-05-29 12:10 XI Xiang branch, arrived at post

Hope this help.