I'm in Denmark so I understand what you mean... I called the UK yesterday and dread the cost as I was on quite a long time.

I would suggest that you make your Square Enix without the One Time Password option as you can add it in later by linking the Security Token (or the Android app) to it. I have a lot of friends that do not have the Security Token so do not have to enter the 6 digit code each log in.

I also believe that you can make a Square Enix Account without a CD Key. (I have a Square Enix account already so cannot confirm this, but I dont have a CD Key for this game yet due to them not being sent out with the order confirmation emails)

But yes, try creating a new Square Enix account without the One Time Password part and let us know from there.