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SKOY was seeing different Amazon FBA fulfillment fees across similar products with the same or very similar size and weight. SalesDuo reviewed the fee differences and traced the affected charges to Amazon-recorded measurement data that didn't match the product information used for comparison. After remeasurement and follow-up, SalesDuo corrected the affected measurement data and related FBA fees.
The issue took about six weeks to resolve. SalesDuo requested remeasurement, shared product images and weight details, and followed up with Amazon several times. Once the measurements were corrected, Amazon updated the FBA fees and recovered eligible past overcharges.
| Case Detail | Result |
|---|---|
| Brand | SKOY |
| Channel | Amazon Seller Central / Fulfilled by Amazon (FBA) |
| Challenge | Similar products were being charged different FBA fulfillment fees even though their size and weight were the same or very similar |
| Root cause | Amazon-recorded measurement data was the likely driver of the fee differences and was later corrected through remeasurement. |
| Approach | Product comparison, remeasurement requests, repeated Amazon follow-ups, supporting evidence, and reimbursement reconciliation |
| Resolution time | About 6 weeks |
| Result achieved | Product measurements and ongoing FBA fees were corrected, and eligible past incorrect charges were recovered |
| Financial impact | Verified recovered amount roughly equivalent to 2% of SKOY’s annual revenue |
| Category | Reusable kitchen and household cleaning brand |
| Marketplace | Amazon.com / United States |
SKOY is a reusable kitchen and household cleaning brand. It sells products such as cloths, scrubs, and towels through Amazon FBA.
While monitoring the account, SalesDuo noticed that similar SKOY products were not being charged the same fulfillment fees. Some products in the same family had the same or very similar unit weight and size but different FBA fees.
That mattered because SKOY operates with tight margins. Even a small extra charge on each unit can add up when it repeats across many orders.
SalesDuo has also worked with SKOY on Amazon advertising. That separate SKOY Amazon advertising case study covers advertising performance, not this fee-recovery issue.
The first warning sign came from comparing related products.
SalesDuo found that related products in the same category and family, with the same or very similar size and weight characteristics, were showing different FBA fees.
A different fee does not always mean Amazon made an error. FBA fees can change because of product size, shipping weight, packaging, size tier, and other fee rules.
So SalesDuo checked the product data behind the charge instead of looking only at the fee amount.
The review showed that Amazon’s recorded measurements did not match the actual product dimensions for the affected products. This measurement issue was leading to higher FBA fees.
SalesDuo reviewed fee differences across similar SKOY products to understand better what might be causing the issue.
The team looked at:
The goal was to understand whether the higher fees could be linked to the product data Amazon was using.
This gave SalesDuo a clearer case. Rather than citing only that one fee was higher, the team referenced available product information and remeasurement results to support the correction request.
Once SalesDuo found the measurement problem, the team focused on fixing it step by step.
SalesDuo compared related SKOY products to find where the fee pattern looked unusual.
This made the problem easier to spot than checking a single product.
The team compared Amazon’s recorded data with SKOY’s actual product size and weight information.
This helped connect the higher fees to the measurement issue.
SalesDuo asked Amazon to remeasure the affected products.
When the new measurements still didn't match the actual product dimensions, the team kept following up instead of closing the case.
SalesDuo provided product images, measurement information, and weight specifications to support the correction.
This gave Amazon specific information to review rather than a general complaint that the fee was too high.
After correcting the product measurements and ongoing fees, SalesDuo created a reimbursement report and reviewed eligible past charges.
The goal was to solve both sides of the problem: stop the higher fees going forward and recover eligible charges already paid.
For broader claim guidance, see our Amazon FBA reimbursement claims guide.
The case wasn't resolved with a single support request.
SalesDuo contacted Amazon several times and requested remeasurement. One new measurement still did not match the actual product dimensions, so the issue remained open.
Another problem appeared when some SKOY products did not have enough inventory available for another physical remeasurement. This made the process harder.
SalesDuo kept following up and supplied product images, measurement details, and weight specifications.
After about six weeks of repeated follow-up, the affected products were measured correctly, and the related FBA fees were fixed.
| Stage | What Happened |
|---|---|
| Initial review | SalesDuo noticed fee differences across similar SKOY products and began reviewing the issue |
| Remeasurement request | SalesDuo asked Amazon to remeasure the affected products |
| Further review | The remeasurement results did not fully resolve the issue, so SalesDuo continued following up |
| Inventory challenge | Limited inventory made the remeasurement process more difficult |
| Supporting information shared | SalesDuo provided additional product information, including images and weight details |
| Fee correction | After continued follow-up, the product data and related FBA fees were corrected |
| Past charges reviewed | SalesDuo then reviewed eligible past charges for possible reimbursement |
Historical case note: This timeline gives a general summary of what happened in SKOY’s case. The exact steps and current Amazon process may vary, so sellers should check the latest Seller Central guidance before taking similar action.
Once Amazon corrected the affected product measurements, the associated ongoing FBA fulfillment fees were updated.
SalesDuo then created a reimbursement report and reviewed eligible past incorrect charges. SalesDuo then reviewed the eligible historical charges and confirmed recovery of the applicable past overcharges.
This solved both parts of the issue. The ongoing fees were corrected, while eligible past overcharges were also addressed.
The recovered amount was roughly equivalent to 2% of SKOY’s annual revenue.
Comparing similar products made the unusual fee pattern easier to spot.
Looking at several related products gave SalesDuo more context than checking one product alone.
Product images, measurements, and weight details gave Amazon specific information to review.
This made the case stronger than simply saying a fee looked wrong.
SalesDuo checked the new measurement instead of assuming the first remeasurement had fixed the problem.
When the measurements still did not match, the team continued the case.
The issue required several Amazon contacts over about six weeks.
Keeping the evidence and case history organized helped SalesDuo continue following up until the problem was resolved.
Correcting the ongoing fee stopped the problem from recurring.
Reviewing eligible past charges helped recover money already lost to incorrect fees.
Not every fee difference means there is a problem. But some signs are worth checking:
Amazon tools like Fee Preview and the Revenue Calculator can help you check estimated fees. But you should also review the product size, weight, and other data Amazon is using to calculate the fee.
One fee issue can likely be handled in-house. Things get more complicated when multiple products are involved, measurement results conflict, or you need to reconcile historical transactions across several SKUs.
At that point, the work goes beyond opening a support case. Someone needs to organize the evidence, track the support history, review each response, and check the financial impact.
SalesDuo’s Amazon account management team supports brands with Seller Central issues and marketplace operations.
Brands that need broader Seller Central support can also explore our Amazon operations support, while sellers considering outside help can review our guide to Amazon reimbursement services.
For more examples of SalesDuo’s work across Amazon operations and growth, explore more SalesDuo case studies.
Unexplained FBA fee differences can add up quickly when they repeat across many orders.
SalesDuo can review your Seller Central account, fee data, and operational issues to help determine whether you need a deeper review.
Our excellent customer support team is ready to help.