Being transfrerred from one depart to another with

An upgrade was processed on the 28/05/2015, it was then cancelled and phone was returned. I have contacted vodacom a thousand times already and they transfer me from one depart to another i am tired of explaining myself. i have been told to contact the folowing numbers *** and *** and both these call centres do not know what they are doing. I want to request for an upgrade again and no one seems to help me. i am frustrated. TO THINK ALL MY BUSINESS CONTRACTS ARE WITH VODACOM,