1. Your tracking number is a valid tracking number. Sometimes you need to wait up to 10 days before the parcel get register into the China Post system.

2. If after 10 days you still can not track your parcel, then you should contact seller and ask him if he did physically mail the parcel,

Hope this help.

1. This is your tracking:
Number: RS240191839CN
Package Status: In Transit
Destination Country: Canada

Origin Country: China
2016-10-25 11:54 The Shenzhen Exchange Bureau, have been exported directly
2016-10-25 11:54 The Shenzhen Exchange Bureau, have been exported directly
2016-10-25 05:48 The Shenzhen Exchange Bureau, have been exported to open
2016-10-25 03:34 Small package Center, left, next stop "Center in Shenzhen"
2016-10-25 03:32 Parcel centre
2016-10-25 00:27 Small package Center, has received send
Powered by http://www.track-chinapost.com

At the bottom of the page right corner you will find this:
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Put the Language you like.

2. Here is another tracking for your parcel:
International Mail# RS240191839CN Tracking Result
Summary
Tracking number Origin Destination Status
RS240191839CN CHINA CANADA On route

History Detail
Local date/time Activity Location Remarks
25-Oct-2016 00:27 Received by Post Office 51810302
25-Oct-2016 13:41 Departure export customs SHENZHEN

3. And another tracking:
Tracking # :RS240191839CN
Date / Time : 2016/10/25 - 13:41
Description :There is no information available for this international item. Tracking by Canada Post is not a feature for this product.
Service Type :International Inbound Registered

4. So from all tracking above we know that your parcel is On Route to Canada. If your parcel gets at the Vancouver Inbound Mail warehouse you could expect your parcel in 6 to 8 weeks.

Hope this help.