Alarming incompetence levels

In September 2018 I upgraded my WiFi contract with Cell C, little did I know that this will expose my profile to ********** activities at the hands of the giant network provider. In December the same year I learned through an alarming debit amount that cell C has given someone a contract in my names and linked it to my current contract. Needless to say that Cell C did not even adhere to their own Internal processes when awarding the contract. That was the beginning of my nightmare, it's took six months of fighting for the matter to be resolve as Cell C was just dragging their feet in resolving the matter. Finally in April/May 2019 the matter was resolved, however I still had the contract to see through. I then told them I'll pay the contract until it termination date from there I want nothing to do with Cell C. Indeed I kept my end of the deal, my contract was finally ending on the 11th September 2020. I wrote to Cell C and advised them to terminate on the said date, I then received confirmation that the contract will be terminated as of the 11th September 2020 as requested. End of September I was invoiced full amount instead of pro-rata which I settled, then invoiced again end of October and I settled again. I then called Cell C in order to get to the bottom of the invoices , only to be told I never requested for the contract to be canceled although I had the email confirming cancelation.

All I am requesting is to be released from the contract as requested and be reimbursed my monies paid after cancelation. Is my request impossible to action? Or the level of incompetence has just reached the point of no return?

My advice to people seeking contracts don't even think of Cell C as for me and people close to me we done with Cell C