Mtn contract

I had a contact with mtn for R230per month for 2years.after 2years it expired l stop paying but they kept charging me.AFTER few months l Then called them they said l must close the account and pay R1300.mean while they blocked the Sim card from the month l STOPPED paying.. but must pay. Well l paid the amount and my name was already handed to creditberu.. l paid their account last year November 2025 even today my name is still not removed.. l can't buy a car,l can't buy a house because of this.. l called to remove my name even today on the 14may 2026.. l regret the day l took their data contract