ABSA doing as they please on customer accounts without customer knowledge or consent

ABSA Vehicle Finance is doing as they please on customer accounts, without the knowledge or consent of customers. When I purchased my vehicle, I did so on a 72-term arrangement. As things stand, my account has been mysteriously restructured 3 times without my consent or agreement. When the last restructuring was done on my account in January 2025 (I only just learned that this was done), a certain amount was recapitalised to my account, then it was removed, then my closing balance was inflated by R10k. So, I don't know why these suspicious transactions were done on my account, and I need it to be explained to me, as those I have spoken to or emailed have not been helpful.