Credit Record Affected due to FNB's conduct

I received a notification to update my FICA information or my account will be blocked. I promptly attended at FNB Cresta and handed a copy of lease with my ID documents. After taking my fingerprints they confirmed that my doc's are in order. I received an sms requesting the docs again, I was assured that this was sent in error and the system should update soon. FNB then blocked my account on 01/03/2016. I called them, outraged, they assured me that all my debit orders will still be processed. I explained that i am a sole proprietor and my credit record cannot be affected, they assured me it won't. They were utterly unhelpful with getting my account unblocked. I was also informed by my private banker that I am no position to impose any timelines on them when i outline the urgency of the matter. After getting calls from my creditors for payment, I called FNB on 5/3/16 they said they cant do anything about my external debit orders but they can assist with the internal d/o. Today, i received a call telling me that Wesbank (FNB division) handed me over for collection and my credit record is affected. when calling the private banking call center no manager is vailable to help