TFG is the bad the l...

TFG is the bad the last time they said i was owing ,i paid R3000 cash now they say i am owing R2000 while i did not use the their services after paying the R3000 it was a long time ago, they messed up with my credit score busy sending their lawsuit to call me while i dont owe them anything ,i want them to clear my name, i wont pay for something i did not use how did the money for the account even come to R2000,please assist me