Refusal to assist to sort out a problem

I took out a contract when I was 18, became unemployed and the contract was cancelled. I owed money which was paid up 4 years ago and there is still a flag against my name. <br> I have called in 10 times to sort this out and every time I get put though to a different department. I finally got a call from somebody who said he would log it with legal and 2 weeks down the line still nothing.<br> I called in 10 minutes ago and because I swore the idiot on the other side hung up the phone.<br> <br> It has been over a month I have been dealing with this problem for over a month and nothing has been done.<br> <br> Do I need to take this to court....<br> <br> I want this resolved now!!!