Standard Bank Online banking a risk to our security

Standard Bank is in the process of changing their online banking site and in the past view months we have been bombarded with threats that they will close the old online site and if we don't register on the new site we will not bee able to do online banking. The new site is a mess and total disaster and then I have found more than one variant of their new online site on line. On Internet Explorer and Google Chrome the site looks different. There are what seems different functions and on Explorer some what looks like Chinese symbols. This is when it is open on one computer and if a third party opens the site on another computer there is a third variant, different from the two on my computer all open at the same time. How can this be correct and how safe is my information and logon details then. Yes my computer has the latest Bitdefender (Total security 2017) and is updated. Reported the problem to ********** and received feedback from Tsakane Khoza with information that does not match what I see on my open sites. I now wonder if there is a 4th site? I send Tsakane a screen print but no feedback as yet and this after being threatened by the bank for using the old site!!! Moving Forward to put their customers at risk should be SB motto as that is what they are doing. HOW SAVE IS MY DETAILS STANDARD BANK?