Extremely Poor Service

Almost 3 weeks ago I called telkom to settle and cancel my contract, it is a cellphone contract. The cellphone was ******. Hence, I just want to settle this contract. I was initially helped by a very helpful and friendly lady who answered all my questions and was extremely patient with me. However, she said it will take a while for the settlement amount letter to come through. I still haven't received it though. I made 3 calls to telkom since, unfortunately I now get hold of extremely rude agents. The first attempt (following week) to follow up, the lady said she will escalate to the manager, still haven't received. The second attempt, was a colored lady, full of attitude, asking me if I was not told over the phone what the settlement amount is. I told her, I need to see the letter and amount in writing so that I can make correct payment, she then cut my call. Who just pays an amount that is told over the phone. If you want a settlement letter from any bank for anything you have financed or loaned, a settlement letter is provided before you make any payment. I have attempted twice today, the first call was a guy, who seemed like he was going to help me but said hold on and then also cut the call (seems like a common thing amongst the telkom agents). The second call was a guy again, he said hold on and next minute, I'm speaking to a whole different person who said I must dial 10213, however this is not for mobiles. He didn't listen to anything, he also just cut the call. All these agents who I have complaints about, sound as if they just woke up. You can barely even hear them because they just talking with no interest at all. As for telkom itself, why can't I just get a damn settlement amount letter from your store, I went there too and they said I have to call. Clearly calling is getting me absolutely nowhere. Your app and whatsapp chats to robot agents are absolutely pointless and of no help. All I want is a settlement of my contract amount, pay it and be done with you guys and horrible service. What is so hard for your agents to email me a settlement amount letter. Furthermore, when the phone got ******, I went to the store to blacklist it. They said I had to call, fair enough, I did that but I made the call from the store. Guess what, your agents from customer care, found out I'm calling from the store and cut the call because apparently, I must not be in the store when I make a call to customer care. TELKOM, what kind of bull**** is this? Honestly, are your stores and customer care a team or enemies. Absolutely insane rules and service from TELKOM