OK, so the plot thickens!
I received now the 50mm 1.8 S (the second one I ordered) and it is clearly a USED lens, not new. It even has the previous RMA on it, the lens was packed without the lens cap on it loose in the box without any wrapper, the lens hood is missing (I always use these), the pouch is missing, there is no warranty card inside, and there is a mark near the front element where the black is worn off.
Do I just shut up? Or start a return on it.
Now I'm REALLY thinking Amazon really don't have their stuff together...
(Edit: I already have the replacement rolling...)
This whole thing is costing me a lot of time and energy haha but I guess ultimately worth it. I'm driving it to the UPS store with QR code to drop it off and my NEXT replacement will be here on Saturday.