Bad service

In 2013 I bought an AudiA4 financed by Westbank.. Due to financial problems in 2017 Westbank repossessed the car and acutioned it.i thought that it was the end of it, however in 2025 I find out that I have been handed over to nibble group for collections as I owe Westbank R110 000.for the same car that was repossessed by Westbank and auctioned..8 years later. For the last 8 years I did not have any correspondence from Westbank and now 8 years later they hand me over the recover R110 000 eight years later., I need to pay for a car I don't have. Westbank repossessed the car and auctioned it .I didn't hear from them in the past 8 years, but now 8 years later they want me to pay for a car they sold at an auction at a lose. This is terrible service. No one from Westbank ever corresponded with me in the past 8 years,, so I don't understand this a why now.