Settlement not accepted

Hi I am very disappointed. On 9th of June I sent out a request using your app for a settlement letter for my accounts this took 3 requests for me to finally receive it on the 13th I read the letter then made the payments on the 14th using Capitec and immediate payment. Today on the 19th I logged on again this time to request that my accounts be closed and I am told I would not be able to because there is money I am still owing and I need to pay this before I can close my account. I am stunned because I still have the letter that I read through and I paid the amounts that I was told for that day the letter states different amounts and the difference between the amounts for the days is only R5 for the last day it was also valid for 5 days. I am now bieng told that the money was added when the letter was sent to me How and why were those amounts not added to the sellment amount why was I not told since on all occasions I had made sure to let all consultants know that I want to settle and close these accounts. This is bad service on top of more bad service.