HOW SAFE OR PRIVATE IS MY ACCOUNT WITH MTN - THEY BREACH THE NEW POPI ACT

Is my account safe with MTN? I am scared for my private information with MTN as they allow third parties to access and bill my account, taking my airtime without my consent or subscriptions to their services. on the 18th of August, promotional messages came through congratulating me on subscriptions, in the next second, my airtime was devoured up to R80 worth of airtime by different companies. I immediately contacted MTN which was very quick to apologize and the lady told me she escalated the matter to her supervisor to refund me my money. she even gave me directions on how to block these third parties. 10 days later nothing was reimbersed, I called again their contact center and was served by another gentleman who also promised me his supervisor will immediately reimberse my airtime with an additional voluntary act to call me that same day to ensure it was done, which he also **** and never called back. up to today, another 3 days later, nothing has happend and I still get third party SMS's. how safe is my account if anyone has access to deduct airtime from it without my consent? how does this even cooperate with the ammended POPIA and PAIA?