The world most worst and untrusted Company in In Africa

My credit score was 469 because I had two defaults on my account, i quickly rectified and paid my two defaults on my two account and they never (Transunion Credit Bureau) update my score to improved scoring, as such my scoring is so low and I am not able to get any credit from anybody in South Africa they claim ( Transunion Credit Bureau) to be the world trusted company and yet they are the worst company to exist in Africa they are busy bul****ing innocent people like me