Parcel lost or ******, looks like it's stuck at JHB Mail Hub

I've been waiting on a parcel since November 2017. On the international tracking site I can see the parcel has been at JHB Mail Hub and transferred to customs on 09 December 2017, it's now the end of March 2018 and the parcel still hasn't arrived.

I think it's either lost or ******, but since nobody bothered to provide me with the local track and trace number I can't even find out where it is.

The SAPO website is also offline, so there's no way to do a proper search.