You just reminded me I have but one left of this rip-off legal settlement. Usage of the script (apt name) usually require a very seasoned ticket counter person or a group of in-experienced ones. Best to give to a good travel agent, let them do on the job, and save a lot of your wait time at airport ticket counter. Be certain to sign in the proper places first.

Please be aware, they state on certificate in very fine print "not to be used with any upgrade coupons, milage awards etc (or words to that effect). And true, I found it very difficult or impossible to get upgraded when using them on most major airlines.