Very disappointed and frustrated

Sometimes in 1998 l took a loan of R12 000 from Unibank and I paid certain amount until the bank was liquidated and closed down. In 2005 this company namely l- Com Services bought a book from the bank and a garnishee order was instituted against me by Kempton Park Magistrate Court, as a result I was surprised as l took a loan at Unibank in Pretoria not in Kempton Park. The order was forwarded to my employer the Department of Correctional Services. According to the garnishee order the amount l was owing was amounted to R23 000 whereby R500 was deducted monthly from my salary starting from January the year 2005 until 2010.The total amount l paid until 2010 was R25 000 in total. To my surprise the year 2021 l received an email that says that l am still owing them the money which of cause l denied as I knew that l paid their money in full until my employer stopped that deductions. May 2022 I was shocked to discover that R500 was deducted from my salary and R47 000 is still outstanding as a balance. Kindly assist me in this regard.

Thanking you in advance.

Kind regards, Lekgoanyana ***