Sim swap

I have ported my number from another service provider a few years ago because of good data deals they offer but down the line,my number was deactivated from getting the mo'nice deals which led me to getting an alternative Telkom sim. By doing so,it led to misplacing my simcard which is my main number I use for everything including banking.its a lockdown and I understand that but they should have an alternative way of performing things like sim swaps. I don't understand why telkom can't do sim swaps over the phone just like other networks.I can not wait untill the lockdown is over as I said I use it for banking too. I cannot pay my rent now because I am stuck.I have sent an email to customer support but have not received any response from telkom. I find this unfair and mistreated as a customer as I am thinking of porting away from the service provider once I get my number back. At this point I am in desperate need of a sim swap to be done. I cant wait for lockdown to be over as no one knows when it will be over.

Please help me!!!