Horrible service

My parcel was shipped on the 2nd on June and hasn't reached me even today. They keep on returning it with reasons that I am not available whereas I am always at home. I live in Pretoria but they keep on trying to deliver it JHB. The truth is these guys haven't been to my place even once. I am very furious now honestly. The worst part is that even when I try to call, I cannot go through and they do not even answer the emails. What kind of courier company is this honestly?