Won't take you off of their SPAM lists

I was cold called by this company wanting to sell my motor car warranty insurance. After I asked the person to please stop contacting me and remove me from their contact lists they stated that they can't do that and I need to go to https://www.nationaloptout.co.za/ and opt-out. This is obviously not a legitimate website and when I stated as much to the sales staff they hung up the phone on me.

I'd avoid this company on principal because they obviously don't have the customer first in their minds.