MTN Southgate 3 days Sim swap and it still not sorted

I called the MTN Southgate store on Tuesday (4/8) and spoke to Sipho. I asked him to blacklist my Sim card. I advised him that I would go to the Southgate store and do the Sim swap. He agreed and blacklisted the Sim. When I got to the Southgate store on Tuesday Sipho commentes that he thought I wasn't coming but anyway he didn't have Sim cards. He knew this when he spoke to me earlier but failed to disclose it. I did my upgrade with Bridgette and left. On Wednesday 5 Aug I was back at Southgate for the Sim swap. Apparently it was sorted and I left. Today.... Day 3...i am back at MTN Southgate. Apparently there was a pending action on MTN side for 3 days which is why my Sim card cannot be activated. Now Sipho is apparently escalating for resolution and nothing is happening. How complicated can it be to do a Sim swap. Is it an MTN problem or Southgate problem. With all the technology available MTN cannot get a Sim swap done in 3 days. Let's see how this unfolds