MTN does not want to solve my 2 years issue.

I am not impressed with MTN SA, I have been trying to solve this matter for 2 years now and they are not taking action to their mistake. I upgraded my phone on the 16th of August 2022, after a month I was told I owe R4056,27 and the amount I had to pay that month was R500 based on my contract. I asked how do I owe such an amount of money they told me my phone is not capped. Which was the mistake mtn had done. I kindly asked them to solve this issue. The following month I got an sms that I owe R8000. The matter was therefore still not resolved. I went back to the store and they changed the manager and reginal manager. But the new manager also said he will solve the issue. I am still going to the store trying to get help but there is no action and the new manager and reginal manager told me they cannot help me as this is not their matter. I have been paying my monthly bill as Mtn's loyal customer for about 20 years. Beginning of this month march 2024 both my phones were blocked and I am not able to use my monthly services which I am still paying for. I am convinced what MTN is doing to me is ***** and they may lose a loyal customer due to their actions. I am so disappointed in MTN as they want me to pay money because of their mistake. I cannot believe mtn is doing this to me. I need MTN to sort out this issue as I cannot work without my phone I'm struggling and I am still paying. @MTN SA please solve this problem as I been trying to call 135 for help and they sent me to mtn billing and they keep hanging up my calls!!! I also emailed complaints@mtn and they did not bother to respond. I am not impressed at all!!!

Gift Modisane *** BA***