MBD, Misconduct, Lies, Wrongful practice

I made a settlement payment in October 2018 for Izwe account handed to MBD, to date i haven't received a paid up letter, i have been listed as a default payer via credit bureaus, this has affected my employment opportunities, i have called several times dealing with several different people who has promised this matter will be resolved ( escalations) it hasn't, i called and spoke to Thonelo on the 24th who confirmed telephonically the account is closed and that i will receive a paid up letter, when i called today again....its been escalated yet again, in order for me to have the default listing removed off my name i need to log disputes and obtain this paid up letter, a default listing that was wrongfully done has payment was made in October 2018,