Bad Service

Not happy with the recent service I have gotten from FNB. I was a private client before i downgraded a few weeks ago. My the PBanker opened a Unit Trust investment account, but she open duplicate accounts. I have requested numerous times to have the second one deactivated before i get duplicate debit orders go off on the 25th. i have not received any feedback to my 3 emails. I have even sent more emails to an FNB inquiry email address, called and was told that i need to cancel the debit order when it goes off in order for the investment account to cancel. I dont want to cancel d/o, i want the account deactivated. And how do i even cancel a d/o when it has not yet gone out?