Does good service still exist at MTN?

In December 2015, I cancelled a contract I had with Altech Autopage. They omitted to cancel the contract and it was carried over to MTN when they bought over Altech Autopage. I contacted Altech and MTN on numerous occasions to inform them that I had cancelled the contract, because the debit order kept going off. Eventually I stopped the debit order, because they were not cancelling the contract from their side. MTN then listed my account as being in arrears. I spoke to customer services and the legal department explaining that this was an error on their part and that I do not owe them any money. This was an additional contract I had. I have had a personal contract with MTN for years which has never been in arrears.

Last year I tried to upgrade only to find that my personal contract is listed in the legal department and therefore the system refused my upgrade. After many, many, many emails and many, many, many visits to the MTN branch in Menlyn where legal matters are resolved, I WAS ASSURED THAT THIS PROBLEM IS NOW RESOLVED. I even offed to pay the arrears amount EVEN THOUGHT IT WAS NOT MY ERROR so that my name could be cleared. At that point I decided not to upgrade, but to only take a data and airtime package.

Yesterday, I went into the IStore to finally upgrade and when the assistant tried to process my contract with MTN, a red flag came up stating that my account is in legal. This was so embarrassing and I am livid! After hours and hours of trying to resolve a problem due to an error on MTN's side, I am still red flagged and cannot upgrade my contract. This has now been running for close to three years. If it was not such a cumbersome process to migrate to another cellphone company I would kiss MTN goodbye forever. Although when it comes to cellular companies, I am not sure if there IS a better service provider?

I would really like to have my name cleared on the system and upgrade my contract without any further hassles. I have been trying to resolve this for close to three years. I have had a contract with MTN for years and I have NEVER been in arrears, yet I cannot get this problem resolved and upgrade my contract. I am at a loss, because I have followed all the steps possible with no joy!