I wouldn't necessarily call this a mistake. But, I was shipping via USPS a non-working naim uniti serve music service back to Naim for repair. I had a tracking number and shipping insurance. It never arrived at Naim for repair. The USPS lost the item.
I filed for an insurance claim and the USPS claimed that my receipt was not adequate. They did not accept the Audiogon receipt I supplied.
Understand, that I originally purchased the item used from another Audiogon member, and Audiogon supplied their receipt after purchase. Well, guess what, USPS not only lost the item, but wouldn't honor their insurance (which I paid for).
enjoy
I filed for an insurance claim and the USPS claimed that my receipt was not adequate. They did not accept the Audiogon receipt I supplied.
Understand, that I originally purchased the item used from another Audiogon member, and Audiogon supplied their receipt after purchase. Well, guess what, USPS not only lost the item, but wouldn't honor their insurance (which I paid for).
enjoy