Shares / sells your personal information

I am highly disgusted!! Pretorium trust shares my personal information with other insurance companies!! I have a personal number that is not listed anywhere and I dont give it to anyone except my closest family members and friends. I have also never received any company calls or anything on it because I dont give it to anyone. On Friday (9 May) I phone pretorium trust from this number to lodge a claim after some of our stuff was ******, and she can read my number on her system. She asks me if she can phone me back on this number to save my airtime and I say yes. And NOW on Monday, I am receiving SPAM calls from other insurers like OLD MUTUAL who I DID NOT GIVE MY NUMBER to!!!! So they share your private contact details without your knowledge! Disgusting! What is the point of having a private cellphone number if companies sell it to everyone! Sies Pretorium trust!! I expected better of you!!