Many travelers are familiar with the problem: so-called booking platforms advertise ticket prices that are in some cases significantly lower than those on the airlines' websites and fees are added in the last booking step or the price only applies if an extremely infrequent credit card is used.
The Federation of German Consumer Organizations sued in this context against Billigflug.de and won before the Leipzig Regional Court. The reason for this is that the price initially displayed is only valid if you pay with a “Billigflug.de Mastercard” issued by Advanzia Bank. Otherwise, the price increased by up to 30 percent.
The court sees a violation of the corresponding EU regulation, because this stipulates that the final price must be displayed in the first booking step. The judgment is not yet final as the defendant is entitled to appeal.
and 