I bought a Light-ticket with Viva Aerobus, which included online check-in 8 hours before departure. However, online check-in requires that you've been assigned a seat. The cheapest seat I could find was almost 8 Euros. The only option would be to do airport counter check-in for free and get a random seat for free, but then I'd have to pay $11 for them to print my boarding pass. Was I just late to choose a seat or do they have free seats on a first-come-first-serve-basis? Or do you always need to add €8/$11 to the price of the Light-fare tickets?