Can't Access Online Bank Account for over a Month

Hi,

I've created a superannuation account with the Commonwealth Bank a few months ago. Over that time I have not been able access the account online due to a technical error (due to an issue on their end). I have contacted the Commonwealth Bank through phone, email and in-person. The response has always been that same stating that the request has been forwarded to 'management' (if that exists).

Is there anything I can do to resolve this? Is there any ombudsman or policy in regards this? I am certainly going to change banks by next week but I hate it when businesses have absolutely no accountability.

Thanks