FNB BUSINESS A *******

I have been a customer at FNB for 15 years and I think its time we cut ties. I have 2 business accounts and 2 personal accounts with them. One of my business accounts is in excess and was due for a debit. When merchants tried to debit my account the debit orders went through but quickly reversed because my account is in excess which I don't have a problem with. FNB then charges 150 #Item not paid no funds and hours later and extra amount #Excess item on item which they're supposed to charge when honouring a debit with my account in excess. This amount at one point was over R300, and they did this to all the debits and they're all reversed. Totalling to over a R1000 every month my account is in excess and when I went through my statements, I found this in every month that my account was in excess. They are *********** all unsuspecting clients and they should be exposed. If this isn't rectified I'm cutting ties with them!