lack of communication / no resolution to query

I have been trying get support from Standard Bank since 7/8/2015 but over 2 months later my problem is unresolved.I called the international call line-I am currently overseas so cannot visit a branch. I was incorrectly advised to send scans of confidential information to an email address, to which I received no response. No-one has been able to reassure me that this info has been treated in confidence. <br> <br> I emailed to query with no response. I called the call centre again, was put through to the wrong dept, but then was helped by someone who took time to look into things but did not have any authority to authorise anything. Subsequently I have been in regular email contact with this person but she was awaiting a supervisor's response. I then received an email to say the problem was resolved and I would hear from them with details - but not a word followed. The supervisor then said to the employee that my pin had been reset however no-one had informed me and I do not have the pin. This supervisor has not rep**** to emails. I am at a loss as how to proceed given their lack of communication. I need clarification regarding the pin and who has had access to my confidential information.