I must agree with the above - letting you know 14 days before an interview in a different country (or continent) is problematic, to say the least.
Finding good air-tickets, getting days off at work, getting ready for the interview - and all of this while most of us are writing other schools' applications as well...
One thing I don't understand - you're able to set up dates for interviews, even before you got an invitation? Where can you see available dates?