!!!!!Absolutely ***********!!!!

I contacted Telkom Mobile last year December, requested a settlement figure for my account. I was provided an amount telephonically and on the 15/12 i paid it in full. I then called them to confirm if my amount was received and account paid up in full, the consultant confirmed the account is settled and he has logged a request for a paid up letter (to which im still waiting for). A week went by and still no paid up letter obtained. I then called a second time requesting same and the 2nd agent advised shes not sure why its taking so long as she can see it was logged for. She too advised me that she can see the account is paid up in full. I then receive 2 calls from their Debt Collecting company in which they utilise called "DEBT IN" stating that there an outstanding amount on my account...HOW?!?!?!? WHEN I CALLED TELKOM DIRECTLY AND PAID THE FUNDS IN FULL AND 3 AGENTS CONFIRMED THE ACCOUNT IS SETTLED. If theres a communication barrier between TELKOM & DEBT IN, that is not my problem, in terms of the CPA & TCF, a settlement amount was provided to me and same was paid. 3 consultants advised that my account is settled YET I STILL GET CALLS FROM DEBT IN STATING THAT THERES FUNDS OUTSTANDING AND UP UNTIL TODAY IM STILL AWAITING A PAID UP LETTER, THIS IS ABSOLUTE HOGWASH AND RIDICULOUS. MY CREDIT PROFILE IS NOW AFFECTED BASED ON AN OUTSTANDING AMOUNT WHICH IS CLAIMED BY DEBT IN YET YOUR COMPANY HAS STATED 3 TIMES THAT MY ACCOUNT IS PAID UP!!!! WHAT GOES ON?!?!?!?! i have been patient for 2 weeks for you guys to sort this out and now im in the process of taking this much further than just HELLO PETER, I suggest you contact me as a matter of urgency and sort out your back end processes and when you contact me, my paid up letter must be on the way via email and an instruction to DEBT IN to stop contacting me for funds in which they will NOT obtain seeing as i was provided a settlement to which i have paid. This is really not difficult to understand.