No response-Lack of Action

Im a premier bankier at FNB and is trying to apply for an overdraft on our Business account. A default from Telkom has been lodged against my name and when we inquired we learned that the account has been settled in April already. When we inquired from all 4 the Credit Companies they confirmed the default is no longer reflecting on either of their systems on my profile. I went to FNB again today the default still reflecting, phoned everyone again and they confirmed for the 100th time that my profile is cleared. I phoned to lodge a complaint with FNB last week and got put through to a premier banker that told me they will get back to me, no one got back to me to date. This is so frustrating.....why can't the bank update their system or just give me clarity regarding this. How does this still reflect on their system but it is cleared on all the ITC companies.