When my case shows ready, I emailed them requesting for a possible date of interview telling that I am currently overseas and getting flight has to booked in advance..i got no response.. After two weeks, I got an email for an expedited interview appointment and the date is just also 2 weeks ahead which is really not possible. So now I emailed them, called them and asking for a new date which is within my vacation days. If I am not lucky enough, il just go for medical and still will try to get new appointment.