Originally Posted by
shdflyer
After 45 minutes with web support trying to apply my Travelbank $ to a reservation, they finally figured out that the reason I cannot use it is because my reservation includes a codeshare. They figured out that Travelbank $ can only be used on itineraries that are UA metal all the way. I made some dummy domestic reservations with codeshares to test this and this appears to be true. Web support said they will be updating the website to indicate this limitation...
This is correct, travelbank funds can only be used on UA metal. UA flight numbers codeshared on other metal will prevent the travelbank option from showing. Also found this out the hard way some months back... it's not very clear from the T&C.