MTN - non existent customer care and service.

Please please please.... I need contact information to escalate my migrain to the people at the top. Renewed a data contract last year. R299 promo. They decided to charge me from November 2019 the full price of over R700. Enquired, Enquired and Enquired. The store said it’s “resolved”. Here we are 1 September and nothing changed. I have a directory full of reference numbers, email addresses and people in the chain. No help! If I cancel they apparently will charge me for canceling the contract. This is just the start people.