MTN is breaching POPI act and send me someone else's bank account details every single month.

MTN has displayed the worst breach of POPI act! I've been getting emails from MTN (I am NOT even a customer) with monthly statements from another person who shares the same name and surname as I do. This person does not have a Gmail account and I've contacted them multiple times about this as their sensitive information is on every statement every month, bank account number, monthly fees outstanding etc. The person has also contacted MTN multiple times asking them to stop, I have contacted MTN multiple times and every email in the thread is sent by a different person; Khetiwe Mafuna, Thobeka Maya, Aamirah Davis and Mthokozisi Thusi. FOUR different people. They even asked me for more of the person's (THEIR CUSTOMER) details in order for them to identify them and I REFUSED to further share this person's sensitive information. After I threatened to escalate the matter and submit a complaint to the regulator, they apologies. However nothing has changed, I am STILL receiving monthly statements with someone else's sensitive information.