When Refund Stacker detects a lost inbound discrepancy on one of your Walmart Marketplace shipments, we act fast, but we need your help. This article explains when your Case Manager will reach out, who they will contact, and exactly what documents you need to provide as valid proof of delivery (POD). Follow the steps below to keep your refund claim moving smoothly.
Trigger: A discrepancy is flagged during your inbound shipment audit.
Timing: Your dedicated Case Manager emails you as soon as the discrepancy is detected .
Subject line: TIME SENSITIVE: Proof of delivery request
Response window: Please reply or upload your documents within 3 business days to avoid delays.
Tip: Add
@refundstacker.comto your safe‑sender list so important messages never land in spam.
We send the request to the POD contact email you provided during signup. If your logistics or operations point‑person changes, update your POD contact email immediately so nothing slips through the cracks.
Provide a carrier tracking page or manifest that shows all of the following:
Full delivery address (street, city, state)
ZIP code
Tracking number

Upload the Bill of Lading (BOL) that includes:
Full destination address (Walmart fulfillment center)
Freight terms (e.g., “Prepaid”)
Seller’s name & complete ship‑from address
Delivery date (proof of receipt)
Carrier name
Number of cases/pallets
Walmart receiver’s signature and stamp
| Format | Accepted Types | Max File Size |
|---|---|---|
| Images | JPG, PNG | 10 MB |
| Documents | 10 MB |
Reminder: Clear, legible scans speed up verification.Open the email from your Case Manager.
Gather the required documents listed in Section 3.
Verify that all pages are visible and un‑cropped.
Attach the files to your reply
Q1. What if I can’t locate my tracking number?
Contact your carrier’s customer‑service line; they can re‑send shipment history to the email on file.
Q2. The BOL is missing the receiver’s stamp. Will you still accept it?
A receiver’s stamp is required. Ask the fulfillment center for a signed POD copy before resubmitting.
Q4. How long does verification take?
Average review time is 2–3 business days after complete documents are received.
Q5. Where can I track my claim status?
Log in to your Refund Stacker Dashboard and navigate to Cases › In‑Progress.
We email your POD contact immediately when a lost inbound discrepancy surfaces.
Provide the correct tracking page (small parcel) or stamped BOL (freight).
Submit within 3 business days to keep your refund on track.
Still have questions? Contact Support at support@refundstacker.com