Shocking service from MTN

Three members of our family had to replace our sim cards over the weekend. My wife and I went to Vodacom on Saturday morning and within two hours our sim cards were working. MTN could not help us, because their system was down.

We went back on Sunday to do the sim swap and MTN Clearwater said that the sim would be working within 24-hours. Late yesterday (Monday) afternoon the sim still wasn't working. I took the sim to an MTN shop at Cresta. The consultant assisted us, did some work on his pc with the sim and said that the sim would be working by 6 pm. If not, we just had to switch the phone off and keep trying every hour. It is now Tuesday morning 10 am and still the sim isn't working.

Surely MTN does not expect me to keep on paying for my contract if they are unable to even just reconnect a sim card?