I copied this from one of the posts a while back.

For some reason, out-of-the-blue, a Mod just dropped in the forums that there is a "super-secret special" phone number to call UPS to process claims of any kind that Amazon purchased the shipping label for (so almost all returns using UPS).

** at least this was unknown to us.. probably due to complacency and lack of any announcement... we never previously noticed 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)

Please feel free to refer to this help page for additional information regarding optional coverage for loss or damage.

Regards,

Quincy_Amazon