Locked out of account! Urgent help needed

I’ve just logged into my teacher account to find I’m being forced to enter my date of birth to continue. The issue is that the drop-downs where I enter the month, day and year of my birth have no option to scroll down the list. There is no scroll bar on the web page, typing the year manually doesn’t work, and neither do the arrow keys. I can only get as far back as 2010 by zooming out, but this blocks me as I’m not old enough to have a teacher account.

Please undo this as I have a workshop to run this afternoon and I can’t get to my account!

If you scroll on the drop downs a scroll appears and you can get down.
I had the same problem.
It hasn’t been well designed.