Nedbank judgment

Good day. I have a judgement against me from Nedbank. According to them the loan was taken in 2012 but the judgement was issued in 2020. I was never contacted regarding this matter. Since February 2022 I've been requesting the loan contract documents with no luck. They either don't answer or say that they'll get back to me. I've contacted the NCR and they informed me to log disputes at all credit bureau's. This is also not working as they inform me that I need to go to the court where the judgement was issued. The lawyers that handled the case informed me that they handed the case back to Nedbank. Nedbank can't give me any info regarding the loan documentation. Not a signed document or recording. This is over 10 years ago. What can I do?