Harassing a wrong person

I was called by Lebogang, he refused to confirm his surname. I told him this is a wrong number and he must provide me with a number that I can give to the person he was looking for and he refused and said the person has russells number. He said the number he used will go through when I call it and it did not go through. Lebogang refused to remove my number off the system, which I regard as harassment, I do not have anything that's linking me personally to russells. He was calling from +***. I contacted your Head office shortly on *** and the lady said she is not fami**** with the number. Russells remove my contact details off your records. I'm not your client, trace your actual client. Don't make it my job to provide you with the correct contact details, it was your duty from inception of whatever your client has with you to ensure that you have correct details. This is harassment and it goes against the POPI Act.