Urgent Sim swop needed with no help from vodacom

I urgently need to do a sim swop on a new simcard i purchased as my phone was ******. i need this number for business purposes and am currently loosing business because i cannot use it. I have now been to 3 different vodacom stores who all are basically saying they cannot help me and they dont know why and i need to phone customer care. i then also spoke to 3 different call center agents who told me i need to go into a vodacom store?? I am stuck and i dont know where to go next and every vodacom person i have spoken to has been absolutely no help.