Hi @Seller_x4FrVRVQLRWtr

Christine here from Amazon Forums.

I was checking the case ID 11219969602 and I do see that you submitted a tax invoice.

Please know that Amazon requires both proof of inventory ownership and proof of delivery to be submitted with the research request:

Proof of inventory ownership: This will help identify any potential discrepancies that may have occurred. Examples of acceptable documents for proof of inventory ownership include an invoice from a supplier, receipt from another seller, or signed packing slip only if you are a manufacturer.

• If you use an invoice as the proof of inventory ownership, the following information must be provided:
• Date of purchase
• Product names matching the missing products
• Quantity purchased

If you are the manufacturer, you can send a copy of the signed packing slip as proof of ownership. The packing slip must include the following information:

• Packing list date
• Shipment or purchase order ID
• Product names of the missing items
• Quantity shipped
• Manufacturer signature or stamp

Proof of delivery: For LTL or FTL shipments, showing the number of boxes in the shipment and the total weight when it was picked up by the carrier. Your carrier should have a copy of this document. This information helps verify that the entire shipment was picked up and shipped as expected.

You can read more about this in the link below

Reconcile your shipment

If after submitting all this information, you still have problems, let me know so we can double-check for you.

Christine.