I booked an award ticket AAA (European city)-BBB (European city)-CCC (US city)-DDD (US city) with United. There was a schedule change and I chatted with the agent to change my ticket to AAA (European city)-BBB (European city)-DDD (US city) for free. Now that the layover in the US is gone, I shouldn't have to pay the $5.6 US 911 security fee. I asked the agent and they said I needed to submit a refund request online, but it seems like I can only complete one after the trip. Is it possible to get the $5.6 fee back now? And what's the chance of getting the refund back after the trip instead?