Originally Posted by flyersky1

Happened today at a small regional airport on UX. I was at the gate 21 minutes before the flight time, which was 8:25pm. My seat was given away, the boarding door was closed and I was denied boarding even though the bridge was still attached. The TSA agents told me that the gate was closed even 5 minutes earlier, which means that my seat was given away AT LEAST 25 minutes before departure. The female gate agent was extremely rude, laughed at me, slammed the gate door at my face and disappeared. I immediately called the premier desk (at 8:06pm) and described the incident. Soon after, a male gate agent appeared and told me I was late and that's why my seat was given away, even though he was not even at the gate at boarding time. Overhearing our conversation, a police officer checked the video cameras from the TSA screening and confirmed that I was at the gate at 8:05pm.

What would you guys suggest I do, if anything? Was the GA right to give my seat away? I received no apology whatsoever, my trip was ruined, and I needed the miles from that trip to requalify for Plat. What compensation, if any, would be appropriate in this case?