FNB Platinum Business Account FICA issues

My business account has been locked as I apparently have not provided enough FICA documentation despite the e-mail trail I have indicating when and where all info was provided. I have raised the issue with both my personal banker and personal banker to the business account and have not yet had any resolution 5 days later. When trying to log a call with FNB I am disconnected as soon as I enter my ID number so have no other means to escalate the matter. I'm not impressed by the way this is being handled. When trying to log a complaint on their website you are met with the following error code (Page not found. Error: 404 - URL: /Controller?nav=genericLeadForm.GenericLeadForm&targetDiv=content&ajax=true).

Nice so you have no means to escalate or raise an issue.