Thank you for your replies and advice. Fortunately, with some back and forth, the seller (private -thanks for showing the nuance there S) and I have come to an understanding and they are happy that my booking of flights sufficiently shows my commitment to following through with the purchase as agreed. My understanding of my commitments was more inline with your comments S, although I now recognise my assumptions with what you have pointed out - I will be more explicit about my expectations with sellers in the future to avoid misunderstandings (lesson learned). To be clear regarding an inspe...