He had a paid-for seat on the train that Eichmann allowed out of Hungary. He should thank Eichmann more for allowing the train out
(there was no way for the train ride to exist or be able to leave if not for Eichmann’s approval) than to thank Eichmann’s Kapo Kastner for selling the leftover seats that were still available after he gave away most of the seats to his entire immediate and extended family and zionist colleagues, after he traded receiving all that for the price of Kastner facilitating Eichmann’s liquidation of Hungarian Jewry and keeping quiet about the Vrba-Wetzler Report.