Narrative Summary

I run an Etsy shop selling handmade ceramic mugs. I shipped a set of four mugs worth $180 via USPS Priority Mail. I individually bubble-wrapped each mug, placed them in a heavy corrugated box, and packed the remaining space tightly with crinkle paper. Unfortunately, the box was subjected to a massive impact during transit, and two of the mugs arrived shattered. USPS instantly denied my claim, stating that "insufficient cushioning allowed the items to shift and collide during transit."

The Resolution Strategy

Claims adjusters often assume that if multiple items break inside a box, they must have hit each other due to a bad packing job. To overturn this, you have to prove the items were mechanically immobilized before shipment.

Using the Authori shipping app, the generated appeal focused specifically on the "immobilization" requirement found in DMM Section 601.2.1. The appeal letter didn't just argue that I used a lot of paper; it provided a volumetric breakdown, showing that the physical dimensions of the wrapped mugs combined with the compressed volume of the kraft paper left exactly zero cubic inches of void space.

By mathematically proving that the items were immobilized to DMM standards, the appeal demonstrated that the "shifting" was not the cause of the breakage. Instead, the items were crushed by an external compressive force that breached the box walls. Faced with a statistically sound defense, USPS dropped the "shifting" argument and paid the $180 claim.