ITC not updated according

I settled my accounts in January and received paid up letter however Iitc still reflects that I am owing. I called on 22 Marchspoke to Lumko who promised to rectify that error and respond back to be within 5 wworking days however till today I am still waiting. I called again on 08 April spoke to Thabiso Maponya team leader who promised me apology letter before close of business however that did not happen as well. I am very disappointed with this kind of service that I am receiving from African bank . I need apology letter and itc to be updatedthat I paid yyou in January. This has led to my bond aapical ionbeing declined because Iit still reflects that I owe you. I am very disappointedwith your team leaders as they promised me couple of ttimes to respond back to me and when I call back I was told that the previous one that I spoke to has resigned now Thabiso as well is not responding to me as promised. Integrity of your company is questionable if your leaders does not follow up as promised. I need apology letter for this as I paid u according to the amount you gave me and you chose to have someone *********** not doing what they supposed to do they get paid to do nothing .