Bad service from FNB not informing the customer

I would like to lay a complaint against FNB

Early in February I called in to change the debit order date of my 2x FNB home loans. The new date was meant to be 26 Feb. After the 26th Feb no money was deducted from my account. I had to log a call via email on the 27 AND 28 Feb and then again on 1 AND 2 March to be told that the system skips a month. (email below)- no one even bothered to call and speak to me about the calls that I logged. Also, at no point was I told when I logged the initial call that there would be no debit order for that month. I have now had to make a manual transfer into my FNB bond accounts.

This is quite disappointing and very bad service from FNB.