Excess Fee

I found that there is a debit that has went through on my cheque account on the 8th of April that I am not aware of. The transaction description reads "Pmt Honfee" I would like to be refunded the amount of the unpaid penalty fee of R155 as there was no money in the account. This is the second time this happened. I called in to FNB on the 10th of April and they advised the turn - around time is 2 to 3 working days.