Yhini ndizisokolela madoda

I am being harassed by Computech that I owe them. They debited to my bank TWO years back I disputed the ******* debit order and blocked it. Now am being harassed by credit Intel that I owe their Client R1989 and they are putting a trace on me. I never had any deal or loan whatsoever with this company and never have. Were can I find help and be assisted with this? Is this some kind of another black tax?