If you fail to provide us with a response to the credit card verification email within 48 hours, we reserve the right to cancel your booking and accordingly process a refund to the credit card used for purchase or we may conditionally accept the transaction subject to the credit card verification being successfully completed at the airport at the time of check-in. If you are unable to send us the documents in the stipulated time frame, please call your local office and advise us of your circumstance.
For more information on terms & conditions of paying by credit card please visit the link below
https://www.qatarairways.com/en/legal.html ("Paying by credit card")
For further enquiries contact your local offices, contact details can be found in the following link https://www.qatarairways.com/en/worldwide-offices.html