unknown debit

I have been banking with FNB Business for some time now andd i have been paying high monthly fees which didnt really bother me until thius morning with i saw a debit on my account with reference " # Excess Item Fee 1 LTE ON 21/06/ .. I do not have an overdraft on my business account and i have never used my account while it does not have funds.. I want the money deposited back into my account by end of today or hell will break loose i cannot bank with such a bank that does this to client who are trying to survive from small businesses in this pandemic and hard lockdowns , in fact there is nothing beneficial about my gold business account besides high monthly fees