Flight Girl,
I doubt that it is "bmi" with whom you have an interview, is it not "bmi Baby" or "bmi Regional"? The three are separate operations (most of the time!) and have quite different terms and conditions.
They don't provide any ticket or hotel accomodation - is that normal for them?
It's a buyer's market out there at the moment, at least they don't charge you for the sim ride!
Good Luck
YS