MTN cannot black list and perform swim swap worst service ever

What a worse experienced at MTN outlet,I lost my two phone both vodacom and MTN on Monday the 05th ,the following day I went to vodacom to report it within 30 minutes I had my itc number and swim swap sim card that activated after 4 hours ,I went to MTN hillcrest in Brooklyn,they tried to blacklist my phone ,they couldn't,said system is down,then I ask for swim swap I paid R3,50 they said I will get swim swap once I press *136# then *135# after I put swim in my phone ,few hours later I couldn't action that ,but my vodacom line is active not MTN on the 08th 12; 2022;,I went to another ntn outlet mams mall to rectify the sim card they couldn't,they ask me to buy another Sim card which I did at pep ,the sim card dudnt work ,today I went back to mtN again,I went straight to lady was helping yesterday,she was rude said she is not a technician,she can only sell if I have problem with my simcard I should go to MTN head office they will help me ,her system is down and there is nothing she should do to help rectified the swim card ,the frustration is more 72 hours trying to do simple thing black list my phone and get swim swap,even the branch manager refilwe couldn't come out with solutions,what I notice they don't even know the system they are using at the shop ,the lack of training might be the issue here,where I am I still don't have swim swap done ,I don't have itc number to open a case from MTN what a poor service ,once this is done I will port my number to vodacom,their services and system proven efficient