Can't FICA despite numerous attempts

I received a notification that our business account for a CC was due for a FICA update. I called to speak to our business banker, but was informed that we had a new banker (no notification). I then wrote an email to Alta van der Westhuizen (our new banker) on 8 December, to which I never received a reply. I then tried to upload our documentation online, and received a message stating that the online process could not be completed. I then drove to Absa Clearwater Mall to submit the documents, and was told (after waiting in the queue for quite a while!) that the branch would not be able to assist me with uploading the documents. I was told I could 'drive to Menlyn' (too late to do that on a Saturday) and then that 'I could go on Monday'. As a chartered accountant, I do actually have a day job. I find it frustrating that your online system doesn't work, your branches aren't willing to help, and your bankers don't respond to their emails. I would LIKE to comply with the legal and banking requirements, but you are making it impossible to do so. Apparently, our account will be 'locked' on the 15th of December if we don't update our FICA documents - I find this blatantly unfair when the fault is in no way on OUR side. Your advice on how to proceed, please?