Mtn does not seem to care about us customers - Under continuous harassment by MTN

Good day

I posted a complaint about the mistreatment I'm getting from Mtn legal some time ago and since then I've been emailing them and calling their call center but nothing has been done yet up to this day. They did not even send a courtesy email or even made an effort to get hold of me. Is there a way my post can be escalated to the head of customer service or someone who can at least assist on this query. below is the post I made and I only got a response with their call center number and they are failing to do anything at the call center;

Under continuous harassment by MTN

I have emailed Mtn numerous times for about 2.5 years asking them to provide me with a statement of account (Acc No. A ********** ) so I can make settlement to clear up my contract account but I have not received any response. I was in some financial difficulties which led to my account being handed over to mtn legal and then to some debt recovery company which also kept chasing me up for payment but failed to advise me the overall outstanding balance on my account. I only made 2 payments to the debt collector but since they could not give me a statement nor advise how much I owe, I stopped paying to them as I did not know for how long I was going to pay them. Some time when I went to one of their store a consultant gave me a print screen of my account which did not show the balance but showed the last payment I made on the account just some days before it was handed to the debt collector and to my surprise the amount I paid was showing as an in and out from the account. I emailed them to explain why my payment had gone in and out but got no response. Now this tyrant bulling and ******** behavior from the mtn legal department is damaging my credit score as the account has been reported as a write off. I send them emails everyday and I waste so much productive time visiting their store in the malls to get the issue resolved but I get no assistance, the only thing they do is to email the legal department which give no response and does not answer their phones. Even the debt collector have tried to email them or phone them but nothing seems to help. Can some people at MTN do their jobs please we are tired of their poor customer service which in turn have a serious knocking impact on our credit rating. Thanks