This began well before the final draw was even made. Fans applied for "Random Selection Draws" without knowing exactly which teams would play in which cities.
Remaining tickets were sold in real-time right up until the day of the final on July 15. The Secret Weapon: The FAN ID how to buy world cup tickets 2018
You could only apply for a FAN ID after receiving your ticket confirmation email. Get your 2018 FIFA World Cup tickets! This began well before the final draw was even made