Constant spam calls and possible breach on POPI act by MiWay.

I have been receiving spam calls from MiWay frequently, especially while I am busy at work, pestering me to get a quote/sign up even after advising them on numerous occasions that I am not interested. I have never given MiWay consent to use my personal information, this is very brazen even after the POPI act came into effect on the 1st of July 2021. It's not even clear on their website the process to request deletion of your personal information, please can MiWay delete my personal information and stop processing it else the best way to stop this harassment may be a complaint to the Information Regulator.