I flew Paris CDG–Detroit DTW. The email to pre-select my meal came, like clockwork, three days before departure. Unfortunately, the Delta.com selection website didn't work. I tried Twitter and the diamond desk, but agents couldn't help me despite the Delta.com error message instructing me to call in for help. Agents had no idea what I was talking about. Your experience could vary, I suppose.
I kept refreshing my browser and my pre-selection finally went through. When I boarded and grabbed a look at the manifest the purser had I was the only passenger in business-class who pre-selected.
