Via eDreams on August 29 i have bought a ticket, there i have also bought an additional bag (40 kg), so in total i bought the plane ticket with a bag 20 kg and an additional one 40kg. And for this ticket i have paid 285 EUR. However, when i went to the airport to check in, it seemed that the company eDreams, did not make the purchase of the second bag (for which i had already paid), therefore i was obliged to pay extra 15 EUR per each kg.