MTN approved 3 contracts in my name without my knowledge and verification documents!!

MTN is *****ing money from my account and refusing to tell what I bought, when or where the product was delivered.

On the 16th August 2021 I woke up to a debit order from MTN. When I call MTN they refused to give me information and blamed it on their own service provider saying their service provider told them to debit my account and I should follow up with them. This is a third party appointed by MTN. What is POPI Act for, if MTN can ***** my information and money and not want to follow up on the issue or tell me where they get my information from. MTN is telling me to contact Afrizone, that number never goes through! The other service provider that granted 2 contacts on MTN's behalf is Rewards Co, Where did they get my information?