Ineffective assistance

On then19th July I found I could not access my accounts on either internet banking or the FNB app, getting an 'incorrect login' error. I found that the username field had been shortened by one character, which meant my username was truncated and could not be entered. The next day I managed to chage my username and password after following advice from my private banker and I again had access. The next day, however, I was again blocked out of my accountrs. A Kafka-esque exchange of emails ensued, the upshot of which is that I still have no access to my accounts.

Could you please escalate this problem to a competent person who can resolve this today. Note that I am deaf and unable to take phone calls. respond via email.