OVER A MONTH ON SOMETHING WITH A 24HR TAT

I went to an MTN store on the 23rd of December 2014 for a SIM swap. I was told the turn around time was 2-24 hours. I've made 5 trips back to the store and numerous calls to the call centre and my SIM is still not active. No one knows what the problem is, countless inquiries have been logged and i haven't heard a word from MTN. MTN has no problem debiting my account each month but can not even assist a client with something as simple as a SIM swap.