Going against the popi act. Harrasment

I am absolutely appalled at the behaviour of this company!! I received a WhatsApp today from their agent Taine Tarpey. Basically telling me they want to sell my house for me. First of all, I don't own a house. She was supposed to have sent this message to my mother. When I asked where she got my number from, she quickly stated she got it from an app linked to the deeds office and it's in line with the popi act. Well, I am no fool. When I Informed her that what she is doing is illegal she gave me a reply dripping in attitude and proceeded to block me. Shocking!!! Don't ever deal with these people. Honestly horrific behaviour