Too lazy to deliver NB study material

I am awaiting urgent study material from Unisa. It was dispatched out for delivery on 25/01/2016 and now returned on 27/01/2016 due to a bad address. Tracking number: UNPE***. I have had parcels delivered before from Skynet so I don't see the problem.. The driver never bothered to call for directions if he was unsure. I get the impression he/she just didn't feel like driving over the N14 to our farm in Randfontein District (near Brandvlei Oasis). I can't have delivery problems with my study material. You are putting my studies in jeopardy. Studies which cost me time and money.