Underpayment detection
Refunzo compares every automatic and manual reimbursement against your actual cost basis and flags the difference as its own claim.
The problem in Seller Central
Amazon does pay some claims automatically, just often at less than the item is actually worth, and there's no built-in way to see the gap.
What you see in Refunzo
A running total of underpayment gaps found, tracked separately from discrepancies Amazon never paid at all.
What it costs
Included in the free reconciliation. If you opt into managed filing, it's covered by the standard 15% fee, capped at $5,000 per account.
See full pricing