OK, it's not very clear: have you purchased a ticket and got an e-ticket? If so that is not at risk. If you have a Hold of some sort but have not paid for the ticket (e.g. using an agency) then yes until ticketing you are at risk. Because of that, if you are definitely travelling and you are comfortable with the EuroTraveller fare, you should go for ticketing. you then have 24 hours to look at amendments to the fare difference without facing a change fee.