MTN is ****!!!

I took an MTN cellphone contract in 2014/15 and I kept on upgrading the contract.

in 2021 July I terminated the contract with MTN unfortunately I was told that I owe them R168.10 therefore I cannot terminate contract while there is an outstanding amount. in August 2021 I paid the the outstanding amount and my contract was terminated and the SMS came through my phone confirming the contract termination. in November 2021 I received a message that I owe MTN R204.00 I thought it was a wrong message.

in February 2022 I received another message that I owe MTN R400.00. In March I received another message that I owe MTN R765. I then went to MTN outlet in Queenwood Pretoria. the lady assisted me and told me that as per the records I owe R935 however she could not have all the details in her system and advised me to go to MTN Menlyn. I went there the guy who assisted me told me nothing appears in his system en he gave me their legal department number. On the following Monday I called their legal department number and spoke to consultant and she confirmed that the outstanding amount is R935. Resulted from R104 that was supposed to pay in August after the contract was terminated of which I was not even aware that there will another bill which will be last one. I paid the the R935 and closed the account. I have a paid up letter with me issued by MTN. on the 23rd of June 2022 I received a message that I must pay R103.90 in-store or my service will be stopped. I ignore the message.

On the 28th of June 2022 again received message that I must pay R207.80 by the 3rd of July 2022. I really don't understand what services am paying for because I am on prepaid. what irritates me most is that when I call their customer service 083 135 I was told to that they are dealing with prepaid accounts and they gave me 083 808. When I call 083 808 its says the number dialed is incorrect. I then google their contract customer line which is *** it says the number is incorrect. Please help I now need to know whether MTN is a **** or service provider. I cant take it anymore and I AM REALLY TIRED NOW.