Your QBR slides say the account is healthy. Your bank balance says otherwise.

In this episode of Marketplace Masters, Paul Sonneveld sits down with Stephan Putter, Co-founder & CCO of Leadsphere, to run a money audit on Amazon accounts. Stephan shares why leakage typically runs from 3–4% up to 20%, and why the longest-running, best-performing accounts are often the leakiest.

Topics discussed:

• The three buckets where money leaks: Amazon-side fees and chargebacks, logistics, and outdated COGS and pricing
• Why small $20–$30 chargebacks add up to real money, and how to dispute them with evidence you already have
• The 30-day rule for claiming reimbursements before they’re lost
• Why a 15x ROAS can mean you’re paying for sales you’d have gotten for free
• How hybrid 1P/3P setups quietly cannibalise each other
• Stephan’s one-hour challenge: measure five SKUs and compare them to what Amazon has on file