Experian SA citizen breach and the citizens are not informed what data is breached

Experian South Africa is not informing customers of South Africa who's data have been breached and there is no platform on Experian SA website to request what data was compromised. It is the responsibility of Experian SA to inform all 24 million customers of what data have been breached. If they are not able to do this, then Experian SA should shutdown until they are able to protect South Africa citizens data. Experian SA please provide the procedure on how to request what data was breached. What is the role of the regulator of POPIA in this breach.