unauthorized debit order

I don't know if Sanlam is now on the business of ****ming people or what. On the 26/03/2024 I was debited R600 by Sanlam. This was a surprise to me since I do not have any policies with Sanlam and I certainly did not sign up for a new one recently. I called my bank to reverse the debit order (which they did) and I had to pay R40 for that. On the 27/03/2024, I reached out to their page on twitter, where a lady by the Xandra assisted me. I sent her a photo of the debit order and she said she is going to investigate. Minutes later she comes back with contact details of Sanlam investment and says I must call them to enquire about the debit order and my portfolio. I reiterate to her, that I do not have a portfolio or policies with Sanlam that I must enquire about; all I want to know is why was my account debited without my consent and where did they receive my bank account details.