Billing incorrect account

I opened an account for my son and clearly stipulated that no charges must be deducted from his account but instead from the master account (myself) as the accounts were linked. After monthly deductions I let my son's bank account run dry, I then went back to the bank and opened two new account for my children and clearly checked and stipulated that no bank fees be charged to their accounts but instead to be charged to my master cheque account. After the first months fee deduction to the one child account I phoned the branch made a huge complaint and had the service provider correct the issue and change the fee deduction to that one account. Now a few months later maybe 2 or 3 months they have started charging the monthly banking fee for that account again to my son's child account and not to my master cheque account. <br> FNB what the hell is wrong with you guys why is it that you cannot follow a simple instruction and keep to it. I am so frustrated and annoyed by this bank I cannot deal with their poor professionalism any longer. Please sort this out NOW if that is not beyond your understanding.<br> <br> Kind Regards <br> Jeydine Otto