CANNOT ACCESS MY CHEQUE CARD STATEMENTS

I have been using std bank internet banking today on and off as I am searching for payment details for legal purposes that I have to supply to my lawyer ASAP. It being a public holiday I have been working on the internet then I go outside a while to visit with family and then I am in the kitchen cooking and then I go back to internet banking - and all of a sudden when I want to access my statements on my cheque account it would no allow me to. I phoned internet banking and told the attendant but all she said was that I must just try a little later. How much later, as it is later now and it is still not working and my time is limited. I am an executive and cannot spend hours on internet banking at the office and therefore thought I would take the time today at home to do just that. EVERYTIME that internet banking has been UPGRADED - IT TAKES 6 AND MORE MONTHS FOR THE INTERNET TO WORK PROPERLY AGAIN!!! SERIOUSLY WHY DON'T YOU LEAVE IT LIKE IT IS???