5 DAYS WITHOUT AN ACTIVATED SIM

So my CELL C SAGA began in early May when I upgraded my contract. After waiting over 2 weeks for CELL C to deliver the correct sim card it finally arrives on 28/05. So I call CELL C to do the sim swap and I give the serial number to the agent over the phone and he tells me in 2 to 4 hours my sim will be activated. Nothing happens so I call again and an agent tells me to wait 24hours. Friday comes and still no activated sim, I call CELL C and am told the agent took down the serial number incorrectly but not to worry someone from SIM SWOP will call me and it will be sorted. How is CELL C going to call me since my number doesn't work? They don't ask but I give them an alternative number. Still no activated sim or call. Saturday I call and am told Sim Swop only works weekdays wait for Monday. It's Monday, there's some backlog but someone will call me today. I've called CELL C twice since this morning and no one has called me back. Still no active sim which means I can't use my phone. What does CELL C have to say when I call? Sorry for the inconvenience and no we can't transfer you to Sim Swop or help you.