Chinapost Tracking won't work!!!!

[hyunjaenaru]

I ordered an Item last week and the seller said they shipped it out Monday and gave me this tracking number

RA323671356CN

So i tried it on Chinapost ever since Monday and I keep getting

"No Result! Please tracking number is correct, then try again"

It's been almost a week and I asked the seller what postal service they shipped with and I haven't gotten a reply.
(I assume there's no reply because a few days back when I asked about the item the Seller apologized for the late response and that their computer was being fixed so I think their computer may be broken again but I really don't know!!)

I don't know what to do and why won't this tracking number work?!!!

[alfachaos666]

everytimes i order from china, i receive the item before the tracking information is updated -_- it sucks but w/e as long as it comes in im happy. i do everything possible to not order from china unless its air shipping instead of by boat, the time for loading/shipping/unloading the boat alone takes about 2-3 weeks