Amazon FBA Services. One Expert Team.

Everything an FBA seller needs to recover reimbursements, protect account health, and grow profitably across Amazon marketplaces.

Who we work with

Categories we serve

  • Books & Publishing
  • Home & Kitchen
  • Sports & Outdoors
  • Consumer Electronics
  • Apparel & Accessories
  • Beauty & Personal Care
  • Health & Wellness
  • Toys & Baby
  • Office & Stationery
  • Pet Supplies
  • Garden & Outdoor
  • Automotive Accessories

Our Services

Choose Your Starting Point

Each service is designed to work standalone or as part of a complete FBA management solution. Most clients start with the free audit.

FBA Reconciliation & Reimbursement Recovery

Daily auditing of every Seller Central transaction. We identify, document, and manually file every valid claim before the 60-day window closes — with full manufacturing-cost documentation as required by Amazon's 2025 policy.

  • ✓Lost, damaged & missing inventory claims
  • ✓Return & reversal discrepancy recovery
  • ✓Fee overcharge identification & refiling
  • ✓Inbound shipment shortfall claims
  • ✓Removal & disposal error recovery
  • ✓Manufacturing cost documentation
  • ✓Monthly statements & denial appeals

ℹ Pricing: 100% performance-based. Commission on recovered amounts only. Free audit with no obligation.

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FBA Account Management

Ongoing account health monitoring, IPI score optimisation, listing management, and performance analytics. We keep your FBA account healthy, compliant, and set up for growth.

  • ✓IPI score monitoring & optimisation (target 550+)
  • ✓Storage limit management & capacity planning
  • ✓Listing health & suppression resolution
  • ✓Inventory replenishment strategy
  • ✓Account health dashboard & monthly reports
  • ✓Policy compliance monitoring
  • ✓New marketplace expansion support

ℹ Pricing: Monthly retainer based on account size and scope. Contact us for a transparent quote.

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Amazon Product Research

Data-driven product discovery for Amazon US, UK and India. We analyse demand, competition, and margins to identify opportunities where the numbers justify the investment.

  • ✓Keyword demand & trend analysis
  • ✓Competition depth & BSR assessment
  • ✓Landed cost & margin modelling
  • ✓Supplier identification & vetting support
  • ✓Review gap & differentiation opportunities
  • ✓US, UK & India marketplace analysis
  • ✓Launch strategy & keyword targeting

ℹ Pricing: Per-project or monthly retainer. Contact us for a scope-based quote.

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Getting Started

Getting Started Takes Minutes

Request a free audit and we'll tell you exactly what's recoverable in your account — within 48 hours.

01

Fill in the Audit Form

Takes 2 minutes. Tell us about your account and what you need help with.

02

Grant Read-Only Access

Invite Leviathan Sellers as a limited user in Seller Central. We cannot make changes or move funds.

03

Receive Your Audit

We analyse your account and deliver a full report showing every recoverable discrepancy within 48-72 hours.

04

We Start Recovering

Upon your approval, we begin filing claims immediately — every day, before the 60-day window expires.

Comparison

How We Compare to Automated Tools & Self-Filing

FeatureLeviathan SellersAutomated ToolsSelf-Filing
Manufacturing cost documentation✓ Every claim✘ Not includedManual effort required
Audit frequencyDailyWeekly or lessWhen you remember
Denial appeals✓ Included✘ Limited or noneManual only
60-day window compliance✓ Tracked dailyPartial — often misses✘ Frequently missed
Amazon TOS risk✓ ZeroSome risk (bulk filing)Low
Claim approval rate✓ ~96% typical*Typically lowerVaries widely
Pricing modelPerformance-based onlyMonthly subscriptionYour time cost
US, UK & India support✓ All threeUS primarilyDepends on your knowledge

*Typical results based on audited client accounts. Approval rates vary by account, product category, claim type, and Amazon's valuation at the time of each claim. Past results do not guarantee future recovery.

What Makes Our Amazon FBA Services Different

Personal Service, Not Automation

Every account managed personally. No bulk automation, no bot-filed claims, no generic recommendations.

US, UK and India Expertise

We understand specific requirements of each Amazon marketplace. India-based sellers expanding internationally and international sellers entering Amazon India are both types of clients we have supported.

100% Amazon Terms Compliant

Every action fully compliant with Amazon's current terms. No grey-hat methods, banned tools, or approaches that create account risk.

A Complete Amazon FBA Service Stack — and How the Pieces Fit

Leviathan Sellers is built around a simple idea: the three things that decide whether an Amazon FBA business is profitable — recovering money Amazon wrongly keeps, keeping the account operationally healthy, and choosing products with real margin — are usually handled in isolation, badly, or not at all. We treat them as one connected system. You can engage any single service, but they are designed to reinforce each other, and most sellers see the biggest gains when at least two run together.

The entry point is almost always a free audit. It costs nothing, carries no obligation, and turns vague worry (“am I leaving money on the table?”) into a concrete number you can act on.

Reconciliation, Management and Research — What Each Solves

Our FBA reconciliation and reimbursement recovery service is the financial-recovery lane. Amazon's warehouses process billions of units a year and make mistakes at scale — lost and damaged inventory, mis-charged fees, return discrepancies. Since January 2025 you have just 60 days to claim each one, and since March 2025 every claim needs manufacturing-cost documentation. We audit daily and file each claim manually so nothing expires.

Our Amazon FBA account management service is the prevention lane. It keeps your Inventory Performance Index above the thresholds that trigger storage restrictions, resolves listing suppressions before they cost sales, and plans replenishment so you avoid both stockouts and excess-storage fees. And our Amazon product research service is the growth lane — finding products whose unit economics survive Amazon's 2025–2026 fee structure, validated in our free FBA calculator before you commit a purchase order.

New to how Amazon's 2026 reimbursement rules work? Start with our deep dive on the Amazon FBA reimbursement policy changes and our walkthrough of how to recover Amazon FBA reimbursements.

Learn

Expert FBA insights

FBA Policy

Amazon FBA Reimbursement Policy 2026

Deep dive into the 60-day window, manufacturing-cost documentation, and how to file claims correctly under 2026 rules.

9 min read

FBA Reimbursements

How an FBA Reimbursement Audit Finds Lost Revenue

Learn how systematic audits surface missing funds from lost, damaged, and mismanaged inventory.

11 min read

Account Health

How to Improve Your Amazon IPI Score in 2026

Raise your IPI, protect storage limits, and keep your FBA account healthy under 2026 Amazon policy pressure.

14 min read

Settlement Reconciliation

Why Amazon Settlement Reconciliation Matters

A practical guide to settlement reconciliation — catch fees, credits, reimbursements, and adjustments before they disappear.

13 min read

FAQ

Amazon FBA Services FAQ

Almost every seller should start with the free reconciliation audit. It is no-obligation, completed within 48–72 hours, and tells you exactly how much recoverable money is sitting in your account right now. From there, FBA account management makes sense if your IPI, storage limits, or listing health need ongoing attention, and product research fits when you are ready to add new SKUs. Many clients run reconciliation plus account management together.

Not Sure Which Service You Need?

Start with the free audit. We'll tell you exactly what's recoverable and which services would make the biggest impact on your account.