No need surprise on how they got your personal details, too easy to get nowadays, you can buy all these shits for a few hundred ringgits, I saw some package before, selling price RM600, 10k contacts include email and phone number, and the the RM1k package include email, phone number and the person job title, and other package reveals more shits (including IC num) so your marketing team can carefully plan what to do with these contacts, all organized in xls files, and this is considered old stuff somemore.

Your phone number links to IC number and then suddenly the guy also knows your assets and where your live and what you do, they can make you paranoid one, once you become paranoid they want to become your "problem solver" but you have to pay them to do it. Lool