Right. This has happened to me on various occasions with Jetpack, whose offices are closed on Saturday. I have always gotten my money refunded when I filed a claim (3 times). Even if a claim is settled in the sellers favor, you can refile the claim again.
I'd much rather be proactive, and avoid claims in the first place.
I have had various cel. phones lost due to the "saturday delivery" problems with USPS.
Now, whenever I buy one, I include a message to the seller that says:
"Hi, please pack this securely in a small box, and include a commercial invoice(or copy of the order details page)
I strongly advise you send this with a signature required for delivery. The Miami post office has a HUGE problem with disappearing packages when no signature is required. We don't want to get into an argument over whether it was delivered or not. "
I've never had a problem with a "signature required" package.
If there's no signature required, they disappear into thin air.