Unsecure bank and mortgage account.

Poor service and security from Standard Bank. I app**** for an access bond on my properties nearly 8 months ago. Subsequent to being granted I have been paying over and above monthly repayments. I requested it to be linked to my internet banking profile to view my balances. I was informed after several visits to a branch and many calls to the call centre, which I never get feedback from, that my account is not linked to any of my personal cards. It's linked to some other card which they have no idea who it is. The best is that they can't remove this and link it to my profile. My access bond with extra cash can't be accessed by myself but by someone else and Standard Bank seems to have no answer.The utter disregard from my Private Banker to this serious situation is another appalling feat of their poor service.She has still not rep**** to any of my queries nor has any call centre agent after several attempts. So how safe is my account. BEWARE of Standard Bank- they have total disregard for your security matched with shocking service. What can be done about this? I just hope the public realise that their accounts aren't safe