The starting point
A mid-size audio accessories brand selling ~1,800 units/month on Amazon India was collecting 4 organic reviews a month — a 0.2% review rate — while competitors with similar volume showed 10x the review velocity and outranked them on every head keyword.
What they ran
- Warranty-registration insert in every box: "Scan to activate your 12-month warranty" — a benefit customers already wanted.
- ₹150 cashback promotion on their two hero SKUs, paid on claim completion via UPI.
- Neutral review ask after the claim: same screen for every customer, honest-feedback wording.
The numbers after 90 days
- Insert scan rate: 4.6% (83 scans per 1,800 units)
- Claim completion: 71% of scans
- Reviews posted: 60–65/month — 15x the baseline
- Hero SKU moved from page 2 to top-5 for its main keyword; sessions up 38%
What mattered most
The team credits the warranty framing: cashback alone (tested in month one on a control SKU) scanned at 2.1%, warranty + cashback at 4.6%. Customers scan for cover; the reward sweetens the claim.