Missing residual value of ticket
Really frustrating situation.
Had a ticket in regular Y going LAX-SFO-BOS for a value of $278.
Changed it to a regular Y $99 LAX-ORD flight. The final change screen showed that I would receive a residual value of $178.
However, never got the residual value after the change, and can't find it under my MP account.
Called in UA, and the agent/supervisor tells me I won't get any residual value. Nothing they can do.
What should I do next?