Gatvol is an understatement

I went to Blue Financial Service to get a loan many moons ago, paid it up but apparently I still owe them R5 , went on google to try and locate a branch closest to me or my work place found one in Randburg tried to call the number displayed number doesnt go through, I am trying to get a hold of these people as this mire R5 is ruining my credit score , none of the numbers provided for the branches work I want to clear my name ASAP