Takes money with no explanation or reason

On Tuesday 18th December i called ***and asked for a settlement value on my revolving loan. After receiving the settlement value i immediately made a payment for that exact amount.

The following day i took my proof of payment into the branch so that they may close my loan account. Upon the branch manager telling me the loan account was closed i received an SMS that stated that R255 was deducted from my account with ref "closing entry". I called in and was advised that this amount was for them closing my account.

Here is my issue, when i called in, why did the consultant not tell me about this and/or add it onto the value that i was meant to pay. i literally paid R90k to settle my account and also pay interest that i should not have and then still be charged R255 to close the account?

What justifies the R255? pressing a button to close the account?was my R90k payment that put the balance to R0 not enough to consider the account closed?

I have settled many loans with other credit providers and have never been charged an amount to close the account. they do it free of charge.

Why could you not take that R255 from your interest that i was charged instead of deducting more money from me when i just paid you so much all at once?

Very disappointing and really considering moving to the best retail bank in the world