FNB records incorrect and embarrassing me as a client

I requested an increase on my overdraft, after speaking with a consultant I informed her that I do not have a specific account that they are talking about that comes off my banking account. Secondly I was informed that I cannot get the increase as there is a company on my name that I have payment problems with, which I DO NOT. They CANNOT provide me with the details either. I am absolutely appalled by this and will make sure I move over to another banking considering I pay up to R300-400 a month for online banking. Capitec and Absa do not do this. This was the cherry on the cake for me, do not I repeat, do not take out a bank account with FNB they talk utter nonsense and charge you ridiculous fees. I am absolutely shocked with the service. How dare they tell me I have a charge to my name that doesn't exist. DISGUSTING!!!!!