I have booked reservation on eurostar from london to paris on 21st May. I want to change that to other date, Eurostart app allows me to do that, Can I go ahead and change the date? What will happen to reservation booked via interrail? Will it still show on interrail account? if the interrail account did not get updated, will my interrail pass get activated on 21st May?
Thank you for help.