SA Post Office is Useless !!!!!

I ordered products from a overseas company on the 7th February. They shipped the products and it went through customs on 19 February. On the track my parcel website it says this 2/16/2019 7:12 PM Arrival at inward office of exchange JIMC E 2/16/2019 7:13 PM Item presented to import Customs JIMC E 2/18/2019 8:40 AM Held by customs JIMC E 2/18/2019 8:40 AM Item returned from Customs (import) JIMC E 2/19/2019 11:20 AM Departure from inward office of exchange JIMC E 2/21/2019 12:39 PM Unsuccessful delivery ZA38828 Missed Delivery/Attempted delivery today I tried to phone more then 10 times no one picks up the phone. I sent a mail to the head office no replay. I sent an sms to the sms line no replay. I want to know where my parcel is an how I can make sure it gets here.