This morning I tried to logon three times and each time after the double-logon process it said my user name was already taken. (which I really doubt!) The system should validate the availability of the user name BEFORE requiring you to re-logon with your account number and password. I actually have no trouble remembering my account number. So now I have to come up with some random string that will be impossible to remember.
Absolutely the worst abomination in the history of IT!