MTN

2020 I signed a 1st phone contract of R229.00 per month with mtn and 2021 I signed 2nd contract of R329,00 rooter. after 24 months my cellphone contract expired (done paying) 28th January 2022.February I phone them to cancel my contract as their procedure. They didn't help me but they keep on sending me messages to advice me to upgrade but I told them I am not prepared for that. March 2022 they asked me to pay R555,00 as their cancellation fee and they cut my line to make calls then I paid that amount they opened my line again April 2022 they took my money of from my account R1099,00 I went to asked them why on their branch in Carlton Center Johannesburg. They advised me to reverse my money on my bank capitec I did that Later they closed my line and they told me that I owned them R1199,00 and they closed my line again I phoned them and they opened my line and they also told me that they will check what happened on my cancellation but nothing happened My I got a msg told me that I must pay R1692,00 and they closed my line more than a month they told me about some arrangements to pay that amount to pay on 23th June 2022. I paid that amount on the 20th June 2022 I asked them to cancel my phone contract they didn't I went to their branch in Jabulani Mall ,they told me that I must phone on that number 135 but I did that many times but they didn't help me. I made some calls for cancellation they I used to wait on line for more than an hour Nobody helped me. No again they told me that I must pay R583.00 and they closed my line again and I don't know why. They cornered me to pay that amount they told me to make some arrangements otherwise they would not open my line They told me to phone for cancellation but nobody picked up the phone more than an hour. Now I don't know what to do Could you please help