Account Settled but Credit Record not up to date!

I have paid up my account. My credit record shows R155.00 owing and is showing late payments after the fact that it was settled. No one contacted me about this. I called TFG Customer Care and was told my account has been handed over to Easton-Berry & Associates and I need to contact them. After sitting with them on the phone, they have confirmed in writing that there is no record of an account with them. How do I pay this and get this fixed?