I was one of them. Wrote a professional resignation letter. Provided two weeks notice. Offered to drop off my ID, manuals, etc. at HQ (I live in DFW). Never received a response back. I know they got the message because I saw "RE" on my Nov schedule. Too much trouble to acknowledge " appreciate your safe service, best of luck"? I did get what I assume is my final pay today. $635. Par for the course for a year one FO; dismal.