This option is meant primarily for students, unemployed people, people from countries with a lower average income and others who couldn't afford the game otherwise. We trust you that you will only use if you really need it.
The application process will run from the 20th of June until the 27th. On the 27th, we will let you know whether you were awarded a discounted ticket. Please, only register for the game AFTER that - the first interval of the signup will run from the 20th of June to the 4th of July, so you will still have a whole week to register after you know whether you have been awarded a discount ticket.