I know this is not helpful on this particular booking but this is an example of one of the many reasons I will never, ever use Expedia or any similar third party site to book an airline ticket. If anything goes wrong at any stage between purchase and the plane taking off and landing at your destination you are left in limbo. The airline will say: "call Expedia" and Expedia will say: "call the airline". It only took me one time to learn this lesson --- never again.

In any event I hope it all works out for you, OP.