FNB - False information on Credit Bureau

Absolutely shocked with FNB Business as they are providing incorrect / false information to the Credit bureau. So I had an FNB Business Revolving Loan account which was opened during 2016. In 2018 I got divorced and retrenched and had to sequestrate myself due to my financial status. So all my creditors have by now been written off due to sequestration and some accounts have also prescribed by now because the are older than 3 years, BUT NOT FNB BUSINESS! So after numerous calls from debt collecting agencies and so called attorneys from FNB they also confirmed that the debt needs to be written off as it has prescribed, so they can't carry out any legal action. So then FNB goes and closes the FNB Business Revolving loan during May 2020 with account number ending 7168 and then opens the account again during April 2020 with a brand new account number ending 3136 for the exact same account??? Please tell me if that is legal? I have reported FNB to the Credit Ombud.