Cell C is demanding money after my contact has been cancelled and confirmed in writing!

I would love to know why Cell C is threatening me with further cost and final letters of demand as well as hounding me with calls from debt collectors, after I received communication from cell c stating my contact was terminated on 25/03/2022.(as per email below) Whereafter I received a statement reflected that there is no outstanding balance only to receive a statement the next month (May) again claiming that I owe them money for a contract that was supposedly terminated. I then log a query on May 19th, to get an automated message saying they would get back to me in 2 days. as of today, the 12th of July I have still not received any feedback up until today when I received a final letter of demand threatening additional costs if I do not pay. To add to this I have been unable to log into my cell c account since my contract was terminated.

I will not pay for a service that has been terminated, that I have written record of confirming that. Stop calling me, stop sending me letters of demand and update your system!

Below evidence:

*** Fri, Mar 18, 11:24 AM to Estie Dear Miss. Estie,

Thank you for contacting Cell C.

We have received your request to have your contract cancelled.

Your cancellation request was processed successfully and your contract will be terminated on 25/03/2022.

Estie Thu, May 19, 12:12 PM to customerservice Good day,

Please clarify for me why you are again trying to charge me after my contract has been cancelled and I got a statement reflecting that? You also now have MBD Collectors hounding me daily?

Attached my statement from April, reflecting that I have paid in full. As well as a statement from May stating that I now owe you again along with failed debit order fees added as well.

*** Fri, May 20, 8:17 AM to me Dear Miss,

Thank you for contacting Cell C.

We have received your email in connection with a contract that has been terminated but showing that the account is till owing.

Kindly note that your case has been forwarded to Collections Department who will be in contact within 2 business days.

2022-07-12

Estie Cell C account number: Capital outstanding: R 369.00 Balance of subscription: R 0.00 Hardware balance: R 0.00 Total amount due: R 369.00

FINAL LETTER OF DEMAND This letter is to inform you that the above mentioned outstanding balance is payable as soon as possible, but no later than 21 days from date of this letter. We urge you to contact us for assistance with a payment arrangement to avoid incurring any further costs.