Ridiculous Service

I called Vodacom on the 10th of March requesting a sim swop, that was done succesfully as after 3 hours i got an sms to confirm that the sim swop was successful however on the 15th of March 2015, my phone stopped working it was not picking up any network, i then went to the store thinking my phone has a problem they checked tried another sim card on it and my phone was working perfectly however the sim card was still not working, contacted Vodacom on their number 082 111 spoke to different consultants who kept telling me that the sim card i have is not the sim card that was used for the sim swop, like *** is that. I did a sim swop on that number and my phone has not been working from the 15th of March 2015 due network not being available on the sim. I have tried to explain that no one has touched my phone or exchanged the sim card but they all give me various reasons which simply say \I am lying"how do they explain my number working on this very sim card from the 10 to the 15th and suddenly that is not the correct sim card<br> Vodacom is nothing but ********"