Quick to put your name on ITC

I closed my current account with FNB and e-mailed them my new account detail, also instructing them to arrange to change my debit order on a personal loan with FNB. They did not adhere to this and one month's instalment was returned. I immidiately instructed them again to take the money from my new account. The loan was fully paid in January 2015. To my surprise I found out that FNB listed me with ITC as a bad payer. They do not respond to my e-mails requesting FNB to kindly remove my name from ITC as this was clearly not my mistake but their own! Unfortunately one can not lust FNB for not following instructions!