TSHWANE INTERNATIONAL MAIL HUB NOT SENDING PARCEL

My overseas parcel was scanned at Tshwane International Mail Centre on 6 January 2015 and has since not moved from there. Track and Trace shows it is still there. They do not answer their telephones at all. Brooklyn Square Post office informs me that the parcel has not been delivered to the post office yet, in order for me to collect it. Parcel was posted from the UK over 4 months ago. How do I raise the dead to deliver my parcel to Brooklyn Square Post Office? Please assist - I am in a dead end street!