Yes, 4 of them on 5/2/2016 and 4 of them on 5/12/2016. They are actually gift certificates (if there is a difference), not gift cards. here are the t&c's
Terms and conditions:
Redeemable only on continental.com. Not valid for reservations ticketed via Continental airport ticket office or city ticket office.
A minimum of 25.00 USD and a maximum of 10,000.00 USD
Only forms of payment with billing addresses in the United States and its territories are eligible
Certificates purchased Aug. 20, 2010 or later are valid for five years from the date the certificate is purchased. Certificates purchased prior to Aug. 20, 2010 are valid for one year from the date certificate was originally issued.
If the full amount of the certificate is not used for a transaction, you can use the balance towards the purchase of another ticket within the original validity period
The certificate will be null and void if its remaining value is less than 1.00 USD
Only valid for air travel purchases, including ticket, taxes and surcharges
Non-refundable
Fully transferable until redeemed
Not valid in conjunction with any other programs (example OnePass Reward redemption)
Valid with any fare types (e.g. continental.com Specials, or eCertificate redemptions)
Cannot be used in conjunction with an Electronic Travel Certificate
Mileage accrual is allowed in conjunction with applicable fare rules for the ticket being purchased
Ticket purchased is eligible for any OnePass continental.com booking bonus applicable to the ticket at the time of purchase.
Only one Gift Certificate may be used per transaction for the purchase of airline tickets.
The Gift Certificate will be applied to the total price of the airline tickets in any one transaction.
Valid for use on flights operated by Continental Airlines, Continental Micronesia, Continental Express and Continental Connection only.
