Inside Data Analytics and Discovery Contravening the POPI act

I am constantly being bombarded by Spam from Discovery Health, Discovery Bank and Discovery Insure. If they're not spamming me in my personal e-mail address. I receive calls from them or their affiliate companies trying to sell me a product. When asked where they got my number from, I often get the phone slammed in my ear. Today, the lady told me that Inside Data Analytics gave them my information, which they got from Credit Verification Agents. This is a contravention of my privacy and the new POPI act. Something has to be done about Credit Agencies on selling our personal information and profiting from it. Please take me off all your contact sheets.