MTN - Taking customers money for no reason....Please sort out Customer MTN on time and give feedback

Account Number: Outstanding amount: R2,451.00 Hi Can someone please call me as I am trying to get hold of a person that can assist me with this matter, I have been writing to MTN for over a year now and have been calling the helpdesk to sort this matter out. This matter has not been sorted for over a year now and I see now that I am receiving an email to pay this amount. Can someone please sort this out.

I had 2 MTN contracts, the one came to an end over a year ago and at the time of the contract coming to an end I call to say i am not renewing the contract, I also went into the store several times to let them know I am not renewing but still has been charged for this contract that came to an end, please have a look at my details and see that this was the case, I have all my emails to show that I notified MTN of this. Can this be retracted as I will not be paying for a contract that has been terminated. MY phone that is still on a contract which has been kept updated with payments is not blocked because of this. Please can someone sort this issue out once and for all. I am been asking MTN to sort this out with no response. I keep getting ****mers calling me back to ask for my OTP to sort this out.