Transunion Credit Bureau
Disputed Outstanding Amount

On the 28th of March 2014 I phoned the ITC on my outstanding balance that I had on my Edgars Account.
They gave me an amount and while speaking to them I paid the exact amount as the lady said.
Today 18th of April 2013 I get another phone call from them saying I owe another R500 and something rand.
This to my knowledge is unaccpetable. The lady was rude and not listening to what I have to say,

I phoned back in 10min and then they say I owe only R85.00.
Is training not provided to those who need to collect money?
I know that after a few years money needs to be written off, but I had the decency to phone them and to pay my account that was outstanding.

Now I am still outstanding with an amount I dont even know where they get it.