Private Client services non-existing

I have changed from an normal cheque account to a Fushion account with FNB a couple of months ago. About 3 weeks ago I received a form to apply for a credit facility, which I ignored because I already have a credit facility with FNB). Then I suddenly got a letter from them saying they HAVE cancelled my overdraft. They took my entire salary against my overdraft and left me no money in my account for food or living expenses. No warning. I am a PRIVATE CLIENT, and my consultant (Chumisa Matinisi) only says that it will be sorted and they received my application for overdraft. But it is now more than 3 weeks, and it is still not sorted. I received NO reply for the fushion department.