Browser not verified - No customer service to resolve the issue

My browser did an upgrade and all of a sudden i get the error "browser not verified". I now cannot use half the options available on the website. I went into the bank and spent 1h40 and they said the issue was resolved. Got home and got the same error. Went to another branch and they said they issue is resolved. Got home and go the same error. phoned FNB and after the 6th attempt of their AI system putting me through to the wrong departments, the man said to me "just keep logging in until your browser is verified". this has been going on for a month now.