I had to wait around 3 hours to get someone to answer me i called right at 7am central , tell them your situation and they will give you an emergency appointment , you need translated proof of the emergency and your flight itinerary
Try to check their schedule every day 12 am..don't be late.. at 12:05 all the times were booked Good luck But I don't think you will be able to fly on time... try to reschedule
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