Lounge access fees are non-refundable. However, voluntary changes are permitted up to 3 hours prior to departure, subject to the validity of the payment receipt which is one year from the date of issue. Your nearest Qatar Airways reservation office or customer contact center will be glad to assist you with the changes.
When booking changes are made less than 3 hours from the time of departure, the lounge access pass will be forfeited.
For assistance contact your local offices, contact details can be found in the following link https://www.qatarairways.com/en/worldwide-offices.html