My information is being shared with 3rd parties

I have been getting calls recently from companies (I.e Omnichannel communications) claiming to be associates of Ackermans and offering me funeral plans. They start off by telling how Ackermans is thankful for having my monthly premiums on my account paid in time and them proceed to offer me some ludicrous fuuneral plans.

I do not remember giving permission for my information.to shared with third parties, I do not appreciate having my contact details being thrown around and having people whom I know nothing of calling me. And in this age where companies are supposed to comply with the POPI Act, Ackermans seems to be failing dismally and should I get another call this will be escalated.