Anonymous ******************
@Sophie ******
You should never buy a non-refundable ticket before you get a visa approved. You could send them a new fully refundable ticket with a rescheduled date. If the visa is approved before the date of your first ticket you can fly with the first ticket and cancel the second refundable ticket. If you don't get the visa approved in time, then you can simply change the date of the first ticket for the fee, and cancel the second refundable ticket. But if you really want to know what they mean, first confirm do they actually want you to provide a rescheduled ticket or if they will still accept the first ticket.