Pathetic 9 years of nothing now suddenly everyone

In September 2014 I recieved a call from RDP collect. that I owed then R30 000 .00 from 9 years ago for an FNB account. I requested statements. After nagging I recieved them. The statement saying 29/04/2008 the account balance was zero. they would speak to manager. For 5 months nothing. Then I get a call again 20 May 15 saying again I owe money. After I explained the whole story and resent statements I got told somebody didn't do something right. They will talk to manager & get back to me. Till today not another word. My brother wants me to sign for a vehicle for him and when they did the credit check they said I have been Black listed by FNB bank. Now I ask you, is this pathetic, a ****, pathetic service, 9 years later. I am appauled that they havent even contacted me again let alone no arrangements no warning, nothing in writing as they are still following it up in May 2015, but they have the audacitiy to blacken my name. Some one better contact me as I have all the proof on my computer as to the correspondence from my side and lack of it from IN-QUEST and the fact that they changed the company collections name that I was not aware of at all.