SIM CARD NOT ACTIVATED AFTER 4 DAYS!!!!

On Saturday, 31 October I went to MTN Centurion Branch for an upgrade. I received my new phone and a new sim card. I was told that my new sim card would be activated within 2 - 24 hours. Sunday, at 11:00, it was still not activated. I went back to the branch that was extremely busy and decided to go to a smaller branch, being Irene. There I was told that I need a NEW sim card and that I had to pay ANOTHER R136-00 after paying R105-00 the previous day at Centurion Branch. I was told that the phone would be activated witin 24 hours. Monday, the sim card was STILL not activated. I called the call centre and received the Ref nr: ***. I was assured that the sim would be actiated by 17:00. By 18:00, it was still not activated. I called again on Tuesday, 3 Nov and received another *** and was assured it would be activated in 2 hours. At 14:00, I went back to the branch, and guess what?!?!?! Received ANOTHER Ref nr: ***. I was again assured within 2 hours. It is now 8 hours later and it is STILL not activated?!?!?!?!?!?!!??!?!?!?!