Gustavo_Nieto you make it sound like that they say shoot one of you family. Things happen get over it. Yeah it is a bit said and i do feel sorry for those who have had the email, but you said that haven't had it so what are you worrying about its not the end of the world.
Your complaining about having an interview canceled just proves that you know nothing about airlines. They change things last minute all the time at least you have had plenty of time to know. Can you imagine being a pilot for one of the bust airlines coming in to work not to have a job anymore or being down route and finding out that you can't get back.
If you react like this with the tests being canceled, how are you going to react if you don't get the job or fail the course.
As Grass strip basher said "Throwing your toys out of the pram as to how unfair the world is won't help. The world (and airlines) owe young wannabees absolutely nothing." Work for it and stop moaning that what the rest of us are doing.