FNB Service going down

I am starting to really be frustrated with FNB service, first I get charged incorrectly on my premier cheque account .......3813 of those ITEM PAID NO FUNDS, and still it takes days and days to settle the matter ,no i give an instruction to close my share investor account ......9879 and to pay it into my cheque account ........3813, but they still pay it into the wrong account ,the frustrating part is that I called twice telling them to pay into account that ends with .......3813 and even sent an email of that instruction, I really enjoy banking with FNB and their online systems but this is getting ridiculous and very annoying.