Null status: RB558296909CN, RB548205015CN

Hello, I am trying to track 2 x parcels from China, to Australia, RB558296909CN seems to be unrackable, and RB548205015CN is in a NULL status in China, as an English speaking person, the term NULL translates to most people as - none, nill , void, gone, nothing, or terminal, wouldn't lodged, or pending be a more appropriate status term? can anyone help track my untrackable "tracking" numbers?