Billing problems/Poor service

I have been charged interest on my FNB credit card and a minimum payment was deducted from my FNB cheque account in respect of a payment due on 30 June 2015 for my FNB credit card. No minimum payment should have been deducted and no interest should have been charged because an inter-account transfer, of an amount larger than the credit card balance at that time, was done from my cheque account to the credit card on 30 June 2015. I have an e-mail from FNB which proves that the transfer was done on 30 June. My credit and cheque statements are reflecting that the transfer was only done on 1 July???<br> <br> Today I spoke to a consultant at FNB credit card call center who imp**** that he cannot assist me by saying that he can only tell me what is on the system i.e. that the transfer was made on 1 July. He further went on to tell me that my previous months' payment was late which I have confirmed is not true. When I asked to be transferred to someone who can help, he transferred me to an FNB answering machine.<br> <br> I am disgusted with the way that my query was handled by the consultant. This is obviously a system error. Instead of assisting, the consultant tried to transfer the blame to me.