Poor conduct of financial systems and *****ing from the client

A one star rating is toooooooooo much for this organisation.

First they provide me with an early settlement amount end January 2019 which is higher than what the outstanding balance was at that point in time. I chose to settle the outstanding amount on 4 Feb 2019 as per the account regardless of me qualifying for an early settlement amount. They provide me with a statement to confirm that R0 is outstanding, yet amazingly they charge me interest at the end of Feb 2019 on a R0 balance and send me the statement today, 12 March.

This time I am insisting that the credit ombudsman takes action against this organisation.