Inconvenience is an understatement

I flew from Johannesburg to Mafikeng on the 30th Of September and when I landed my luggage was not there. The people at the saa desk could not assist me as they didn't even have the customer care contact center telephone number. only an e-mail address. I was told to fill in a form and they would try and track my luggage. 2days later I'm told that I have to go and fetch my luggage from the airport, no explanation no apologies. I really don't think I should go all the way to the airport considering this was not my fault. the least the airline can do to try and rectify this is deliver my luggage to me. Iv written to their twitter pages with no avail. I clearly do not deserve an explanation and am not happy with the treatment I received.