From my experience normally, you will only get up to date status whenever the parcel was sent from their poslaju centre where they have their computerized system and barcode scanning..if u sent it thru the normal post office it will take time for the parcel status to be updated...or maybe they don't update at all until the parcel arrived at your doorstep due to time constraint..

For the time being..i have no qualm using the poslaju services..cheap and still reliable..although i've heard some unpleasent stories..

Cheers