MTN Pathetic Business Service

My cell phone was ****** on Friday 9th Dec 2022. On Saturday I went to MTN Kenilworth for sim swop, which was authorised by 11am. Nothing happened and on Sunday 11th I returned ; the operator lodged an appeal on the system, which I saw. It is now 48 hours after my original purchase of the sim swop and still no connectivity. This is the key number for my business, which cannot operate effectively. I cannot phone the branch because I have no telephony.