I feel violated

Received a whatsapp with no introduction, just spouting on about loans, asked them to identify themselves, then avoiding to do so.

My whatsapp number is for family and friends only, and they say they got it from a google search. THIS IS INVATION OF PRIVACY.

The name doesn't even list on the registered company names on the drop down list.

Apparently KWM financial services loan????? Who are these people and who gives them the right to just use ones personal number?