Awareness only · official claim below
What this claim is about
When you buy something on Amazon, one offer wins the “Buy Box” — the “Buy Now” and “Add to Basket” panel — and that’s the offer most people click. The claim, brought by Robert Hammond on behalf of UK shoppers, argues that Amazon’s Buy Box algorithm favoured Amazon’s own products and sellers who pay for Amazon’s own delivery (“fulfilled by Amazon”), pushing aside cheaper or better offers on the same item — so millions of customers paid more than they should have.
The Competition Appeal Tribunal certified the claim, and in February 2026 the Court of Appeal refused Amazon permission to challenge that — so it is heading to a full trial. Nothing has been decided on the facts, and Amazon denies wrongdoing.
This is an opt-out claim covering an estimated 49.4 million UK Amazon shoppers, seeking more than £1.2 billion. Eligible people are included automatically, with nothing to sign and nothing to pay. You don’t need a claims company, and LegalClaimPro doesn’t collect your details here. (There are separate claims about Amazon brought on behalf of businesses and sellers; this page is about the consumer claim.) Nothing here is legal or financial advice.
How this kind of claim works
Group claims take different forms. Here’s the shape of this one, in plain terms.
- Competition Appeal Tribunal (CAT)
- A specialist court that hears large consumer claims about companies breaking competition law.
- The “Buy Box”
- The panel on an Amazon product page with “Buy Now” and “Add to Basket”. Most purchases go through whichever offer wins it, so which offer Amazon picks really matters.
- Certified (a Collective Proceedings Order)
- The Tribunal has approved the claim to go ahead to trial on behalf of the whole group — and Amazon’s attempts to appeal that have failed.
- Opt-out claim
- If you’re eligible you’re included automatically — you pay nothing. The official site explains how to opt out if you’d rather not take part.
What the claim argues
The Buy Box, tilted
The claim says Amazon’s algorithm favoured its own products, and sellers who pay for Amazon’s delivery, when picking the “Buy Box” offer.
Cheaper offers buried
It argues better or cheaper deals on the same item were pushed aside, so shoppers didn’t see them.
Overcharged as a result
It says millions of UK customers paid more than they should have.
These are allegations; Hagens Berman and Charles Lyndon, for class representative Robert Hammond runs the claim, and the court has not ruled.
Who’s covered?
- You bought something on amazon.co.uk as a UK shopper at some point since 1 October 2015 — the official site confirms the exact period
- You were buying for yourself, as a consumer, rather than for resale
- It’s an opt-out claim, so eligible people are included automatically — nothing to sign, nothing to pay
How it’s unfolded
- 2015 onwards The period the claim covers — purchases on amazon.co.uk from 1 October 2015.
- 2023 Robert Hammond files the consumer “Buy Box” claim at the Competition Appeal Tribunal.
- 2024 The Tribunal chooses Hammond’s claim to proceed (over a competing claim) and certifies it.
- February 2026 The Court of Appeal refuses Amazon permission to appeal the certification; the claim heads to trial.
Common questions
Do I need to sign up?
No. It’s an opt-out claim, so eligible UK shoppers are included automatically. The official site explains how to opt out if you’d rather not take part.
Am I covered?
Broadly, if you bought things on amazon.co.uk as a UK consumer since 1 October 2015. The official site confirms the exact dates and detail.
Will I definitely get money?
No — nothing is decided. The claim is heading to trial and Amazon denies the allegations. Any compensation would be decided later; be wary of anyone promising a fixed sum.
Does it cost anything?
No. The claim is funded, so there’s nothing to pay and no fee taken from you. Any compensation would come from Amazon.
Who’s running it?
The claim is brought by Robert Hammond with law firms Hagens Berman and Charles Lyndon. LegalClaimPro isn’t involved in running it — we’re raising awareness and we don’t collect your details here.
Join the official claim
This claim is run by Hagens Berman and Charles Lyndon, for class representative Robert Hammond. LegalClaimPro is featuring it to raise awareness — we don’t run the claim and we don’t collect your details here. To take part, register on the official claim site, where you’ll see who’s behind it and their terms before you join.
The official site opens in a new tab. Always check who runs a claim and their terms before sharing your details.