what happened to the POPIA act

I just had a call from Pro Debt Solutions about apparently overpaying on interest on my accounts to only figure out it's another company offering debt revue. my problem is the following: the next moment, after saying no thank you and ending the call, I get a SMS saying I gave permission to these people to do a credit check Do I not have any privacy according to the POPIA act? How are they just allowed to get all my information like that. I will be needing answers please. I did try to contact the credit ombudsman but the contact number supp**** goes straight to VM