Dealer warranty with SB ????

I bought a née Skoda yesterday afternoon. However, I had to find out yesterday evening that the dealer has flopped me a little. When I asked him about the warranty conditions, he listed the scope of the guarantee, but he had not told me that under point VI of the guarantee conditions, I have to pay a 10% own share, at least 50,- Euro, the highest 250,- Euro per warranty case. Really great! Is this new way and give? Why buy ic h then a car at the dealer? But because of the free warranty. After all, I certainly pay 1500-2000 euro more than with the private man. In the purchase contract, however, it says that he “extensively” informed me about it. But was not like that. He told me something about water pump and alternator, then I signed the purchase contract and then he pulled a folder out of the desk, and there he put the warranty and the copy of the purchase contract and gave me. e-mailed and faxed yesterday evening, but so far he has not contacted me. ;-(