Hi Super - I also leave a note with the item (on the packing slip), stating somewhat the same things you do. I just want to clarify: When you send your followup 'polite message' asking if they have received the item, are you NOT mentioning feedback at that point and just hoping they get the hint? It sound like that's what you're saying. If that works, then maybe I will adopt it since my little note is often not effective.