Vodacom Sucks

Someone did a sim swap of my simcard and access my bank account. I managed to call vodacom and got help after a long time of have to keep interacting with their Bot (Tobby). Which on its own really sucks. When i go to Vodacom outlet to get new simcard, I'm asked for my ID, proof of address and last 5 numbers i called. How is it that someone managed to do sim swap without having to submit these documents and me as the registered/ FICA person i should struggle. Once i succeed in getting my number back, bye bye vodacom.