Sim-swap number not active after waiting 7 days

Mtn initially advised me that my sim-swap will take up to 2 to 3 hours to complete. A day later there was no activation on the new sim chip, I returned to the supplier and was advised it actually takes up to 48 hours to complete. A week went by, and my cell-phone still displays SIM CARD REGISTRATION FAILED when I start it. I do keep the cell-phone powered off as advised by MTN.<br> <br> What I am upset about is that MTN advised me that my first complaint was resolved '3 days ago' as shown on their computer. They will open the same request again for attention and promised to call me as soon as the sim-swap is completed. I have never received a call from MTN at all since the sim-swap was started - and paid for.<br> <br> I have been inconvenienced in not having my normal contact number available! I can only use Whats-app and Internet when my phone connects to my wi-fi at home.