Как в Ryanair.com поменять дату вылета?

If you do not use your booked flight, the fare, fees and charges are non-refundable but you may apply in writing within one month of the date of original travel for the refund of the Government Tax paid.  Government tax refunds are subject to an administration fee. click here for fee details.  If the refund amount is less than the applicable administration fee, no refund will be made.