Very poor service from Absa

So I moved my vehicle finance loan from Wesbank to absa, because absa had promised a better interest rate. The lady who was helping me generated an e-contract for me which I signed. She then realized that the amount she had listed on the contract was not as indicated on the letter of settlement from Wesbank. So she had to generate a new contract for me with the correct amount which I signed. I was then informed when I was trying to settle my loan with them that two accounts for the same vehicle were generated for me. I was told the first account had been an error and I should focus and settle the second account. Which I did. The second account was closed and when I asked about the faulty first account, I was told it would be closed. A few months later I am contacted by their legal team telling me they will be repossessing my car.