Amazon Sellers: Facing UPS Overcharges on Shipping? Potential Class Action Lawsuit Forming

I’m an Amazon seller and I’ve been dealing with a serious and costly issue involving UPS shipping adjustments through Amazon’s shipping services. UPS appears to be modifying package dimensions and weights after shipment—without proof or justification—in order to inflate shipping charges. These changes are then passed on to my Amazon seller account as shipping cost adjustments, often days after the label is purchased and the package is delivered.

This isn’t a case of occasional discrepancies—it’s a pattern of: • UPS altering declared dimensions/weight without clear evidence (e.g., no photos or scans provided) • Significant cost increases weeks after shipping, making accounting and pricing nearly impossible • Amazon allowing these adjustments with minimal to no dispute process for sellers • No transparency or recourse, and no way to verify or challenge the validity of UPS’s claims

This practice is harming small and mid-sized businesses like mine. After connecting with a few other sellers, it’s clear this is not an isolated problem. It may even rise to the level of unfair billing practices or contractual abuse, and could warrant legal action.

That’s why I’m looking to connect with: • Fellow Amazon sellers who’ve experienced similar overcharges through UPS shipping adjustments • Attorneys or legal professionals with experience in e-commerce, logistics, consumer protection, or class action litigation

If this sounds familiar—or if you’ve been hit with these unexplained shipping adjustments—I’d like to hear from you. Together, we may have the grounds to pursue a class action lawsuit and hold UPS (and potentially Amazon) accountable.

Let’s stand up for transparency, fair billing, and the right to defend our businesses.

Im talking about $10k each month for the last 6 months include T-claims overcharge. In some of the cases the customer returned the package using UPS the charge the correct measurement so there are proof of real measurement and easy to proof.

Thank you for reading. Will update once while proceeding with this case.