Poor poor utter poor service and *****

I opened a new account and arranged that certain debit orders must be migrated to the new account. We are going under debt review and was advised to open new accounts. A lady from fnb assisted me online no issues. I transferred my salary to the new account as soon as it was paid into the old account to prevent the debit orders from going off as advised by the lawyers. This however did not stop fnb from allowing the debit orders to go of even with no funds. No my old account is overdrawn with a ridiculous amount. I went into the branch at new market to sort out this situation and just got told sorry they cannot assist I need to pay the amount. I even presented the letter to them recieved from the lawyers. They just refused. This leaves me in a position now where if the creditors are going to continue presenting the debit orders this amount is just going to grow. It is impossible to reason with this bank and the service is utterly atrocious. Stay away from fnb the only bank I now that allows debit orders to go through if there is no funds