Since the interest rate change in Oct 2024, my car loan account with Absa Vehicle Finance has been a mess

Since the interest rate change in Oct 2024, my car loan account with Absa Vehicle Finance has been a mess. My monthly installment was meant to decrease from R2800 p/m to R2600 p/m but every month is a stuff up now. When I call or email, I get told capitalization occured and their technical team is trying to resolve the error but nothing has been done to amend it or even explained to me as a client. Useless. I will never use them again for car loan financing and once my car loan is paid off, I intend to close all 4 of my Absa accounts and switch to a better bank.