I have an eVoucher and a paper voucher that expires 1/7.
Domestic flights generally are cheaper on Tuesdays and Wednesdays so I want to wait until then to book my flight. Can I use both on 1/7 to pay for my flight (I read I can use multiple vouchers for one booking)? I know I need to mail in the paper voucher and don't want them to tell me that it's expired when they get it in the mail. I assume the eVoucher doesn't require mailing (please correct me if I'm wrong)