Seeff durbanville personal info delving

I have received whatsapp message from Gene van der Berg at Durbanville seeff. She congratulates me on my birthday, also congratulate me on being in my house for 2 years. I have never given then any concent to contact me. First of all to get personal info from a property should have been requested from windeed and that is *******. Windeed only give registered owner info but not contact numbers. I have asked her numerous times to send me info where she got my info from. She just refused. She has also contacted my wife with the same whatsapp. This tells me she got it off windeed. She is breaking the POPIA law and I will not leave this there.