WRONGFULL ITC LISTING

Good day, I struggle to get through to MBD as they listed 3 creditors on my ITC that was removed 3 years ago on my Credit Report as outstanding again. This is really worrying me as it make my credit and credit score bad and low and I cannot apply for anything. I`ve taken this matter up with Transunion but they are not able to help me accordingly to them as they said I must take it directly up with the company. I would really appreciate if you can assist me in this matter.