@ Fisher
Yes, the turn-around time was only one week from the time I mailed the receipts until it arrived via UPS. I went with the laser rangefinder, since I already had a cheap but good enough borescope. Good enough to find missing cat toys under the refrigerator, at least.
I included a copy of everything that seemed relevant: a printout of the email confirmation from the vendor, the invoice from the web page, and the packing list from the shipment of the camera. The order number tracked all the way through all three pieces of paper, so they could see that I ordered it, paid for it, and received it plus verify that it was a genuine UPS tracking number.