NIMBLE standing in my way for a debt older than 10 years

In 2010 I was retrenched and could not afford to pay off my debt with one of SA banks, now 12 years later NIMBLE is still listing me via EXPERIAN for an old prescribed debt which is affecting me negatively as it shows that the loan is arrears. I am employed now and paying my debt well. I recently tried to buy a house and I was told about NIMBLE. I called the credit bureau and they told me that NIMBLE reloads my name every month. this company is trying to destroy my life.