You can try this info that one of the mods dropped a while back. I saved it for occasions like this.

To file a claim with UPS, please follow these steps:

1. File a claim with UPS by calling 1-800-711-5914

The UPS personnel at the above phone number are trained to support claims requested by Amazon sellers.

2. When submitting the claim, inform UPS that you are filing a claim for a damaged or lost item for Amazon seller-fulfilled.

If UPS will not move forward with your claim request or the claim was initiated but not paid, follow these steps:

1. Call UPS at 1-800-711-5914 (this phone number is designated for Amazon sellers), and request UPS to help with your claim.

2. If UPS continues to refuse to settle the claim, you can contact Amazon. However, before contacting Amazon, you must obtain the following information from UPS by calling 1-800-711-5914:

UPS tracking information (required)

First and last name, or agent ID, for the UPS employee who refused to initiate the claim (required)

Your contact email, phone number, or both–this will be provided to UPS (required)

Business name and full mailing address to where the claims payment check should be sent (required)

UPS claim number (if available)