I placed an order, but their system calculated an incorrect price in the last step. In the last step order system added € 7.88 to the price, this fee is for payment with VISA CREDIT card and my payment was paid for by MASTERCARD and there is no charge. After that I try to make another reservation again, the amount was same until the last payment step. I try to make a reservation after another day, the price has not changed, so I'm 100% sure they are lying about dynamic prices, because the price changed only during the last step on payment of the reservation. And for some reason the increased price is exactly as VISA CREDIT card service fee- exactly one cent per cent. So they are fooling people. I informed OPODO, sent bank statements and screenshots, asked them to correct the mistake, thought maybe they didn't know their system was billing incorrectly, but they refused to fix the problem.