Overcharged fees. So many enquiries and very little communication.

I was overcharged service fees on my FNB Eswatini account. After almost a month with no resolution, I wrote on here to get this moving. Yesterday I got some of my money back but it is not the amount I am expecting. I have asked for a breakdown on how they go the amount so I can dispute it if I believe it is STILL WRONG and I was told to go in branch to speak to a manager. All of a sudden, when the entire time my query has been handled via email.

I have responsibilities and I can not be chasing after you guys for a mistake you made. Please provide me with a full breakdown on the amount returned to me. I am tired of this back and forth for an issue created by you guys. I always comply and provide documents when requested. I would like to receive the same back.