POPI act

I got a call from Zikhona from the company, she wasn't even sure whom she's looking to speak too, and regarding the POPI act where did they get my numbers from? Because she couldn't even explain who she wants to talk too? And where she got my numbers from? Called calling with no information. She stated they just calling every South African number in a way to try there luck or what sort? Really disappointed ☹️