Good luck. Even with insurance they are sketch. I think it was here even, but I heard a story where they refused to pay out on the insurance because it wasnt actually lost. Sure, they delivered it to the wrong house, but since they delivered it and didnt actually lose it, they said they were not responsible.
I've had book rate materials takes 3-4 weeks to eventually show up. It's not 1st class mail.
I cringe when I order something and it is shipped UPS and TRANSFERRED to the post office for delivery. If I wanted USPS, I would not have chosen UPS ground shipping for my order.