Chronic cold calling to my business

Day1 Health has hounded me with its cold calling. I have no affiliation or even heard of this insurer, yet the agent denied that it was a cold call and stated that I supposedly requested contact.

They contacted me via my business' landline that they likely sourced from my company's website by a third-party data source.

As a company that provides personal insurance, I'm sure most people will use personal information when opting in for a contact request. Their tactic is probably a workaround for POPIA, but it won't have me signing up for a policy any day soon!