Useless service provider

Last year 2021 July 19th to 26th I went to cell C mall of the north to ask about settlement for my account which I wanted to settle coz of financial issues. I was given the opportunity to settle my account so I don't have to pay for anything regarding the service from them, fast forward earlier this year April 2022 I received a deduction on my bank account, i made an enquiry regarding this issue sadly I didn't get any response, around May 30th I wrote to their *** they asked for proof of payment so that they can make investigation towards my enquiry. Since then I got an automated email response saying I will get a call within 24 hours still nothing. Today 8th July 2022 I went to the store in Mall of the North again to get a clear answer regarding why am still being debted against my account after I have settled my account, I approached sales reps by the name of Kgothatso who tried to assist me with this problem, unfortunately she doesn't have knowledge of what happened or how to go about assisting me with this, luckily she referred me to call center where I was assisted by the lovely lady by the name of Mandisa, who also had no clear answers to my issues in hand, instructing me to pay the bills that I inherited from the *********** sales rep who had assisted me with the settlement in 2021,she said she is sorry for the way everything turned out between me and the store sales rep, but I would need for me to settled the new settlement that was in my name due to the errors made by *********** person who failed to settle my account, the conversation turned south after she asked me what is that I wanted to happen moving forward, I told her I don't want to pay for someone else mistakes. I want cell C to clear off my debts as I didn't enter into second contract with them before my old account was due. What is sad is the lady Mandisa asked to talk to manager in the store who was not helpful in any way, I had been in the store for more than an hour without any assistance from the manager who was in and out of the store. The manager didn't want to talk to the call center agent he just handed over the phone to the sales rep and continue to ignore our problems with the store. This guy didn't even seem interested in assisting us with with anything. From his attitude I could tell am here for a ride as soon as the sales rep wanted to blame me for the problem with my account, when she told me I should have canceled my account as soon as I paid up my settlement letter, to which I explicitly explained that I asked for an assistance with the settling of the account so I don't owe any cent to the Cell c. She kept saying you should have written letter to cell C stating that you canceled the account. I was so mad I chose to speak to someone who was more sense able to please explain what does settlement of my account meant to them, unfortunately again the manager was playing hide and seek. I was told about cellC bad customer services, but I went and did business with them coz I thought maybe my friends were wrong. I've never in my life ever experiences useless or non existence lack of customer care. What sold me to their service was the code of conduct, to which I can tell was written for someone or something outside their business. Am Hurt coz now they threatened to hand over my account if I don't settle their error, no one is handling my situation with concerns but insults. The spineless assistance are useless to help me. I've asked for the name of the sales rep who helped me with the enquiry of settlement letter, am told they don't have any knowledge of who was helping me, they refuse to do anything to try to check who helped me, this says alot about the kind of transparency they push in their stores country wide. They keep shifting their incompetence to the clients who are helpless. reasons for settlement was to cut down my debts,this useless service provider just dug a whole in my pocket due to their unprofessional conduct, I doubt those sales reps aren't trained to assist us the client but rather to blames us with new information when dealing with us, when they fail to help they refer us to call centers when they too fail they call the manager who then ranaway from the challenges. This is the most useless business ever