Yes, the Supacenta name is mapped on a landuse by this way 
https://www.openstreetmap.org/way/402965762
and on the building by this way
https://www.openstreetmap.org/way/175168513#map=19/-33.902108/151.215422&layers=D

The landuse way is not a building so building=commercial and shop=mall should be deleted from it.

The tags on the building way seem ok.

All you have to decide is which one should carry the name.