Published by Global Banking & Finance Review®
Posted on February 26, 2026
1 min readLast updated: February 26, 2026
The Court of Appeal refused Amazon permission to challenge CAT certification of two UK collective actions over its Buy Box. Retailer and consumer claims, led by Andreas Stephan and Robert Hammond, seek up to £4bn in damages.
LONDON, Feb 26 (Reuters) - Amazon on Thursday lost its latest bid to try and throw out two mass lawsuits from retailers and consumers worth up to 4 billion pounds ($5.41 billion) for allegedly abusing its dominant position.
Andreas Stephan, a competition law academic, brought one of the cases on behalf of over 200,000 third-party retailers, worth up to 2.7 billion pounds.
Consumer advocate Robert Hammond separately brought a case valued at up to 1.3 billion pounds on behalf of millions of Amazon customers.
The Competition Appeal Tribunal last year certified both cases to proceed and Amazon was refused permission to appeal against that decision by the Court of Appeal on Thursday.
($1 = 0.7390 pounds)
(Reporting by Sam Tobin; editing by William James)
Amazon was refused permission by the UK Court of Appeal to challenge the Competition Appeal Tribunal’s certification of two antitrust collective actions brought by retailers and consumers.
Competition law academic Andreas Stephan represents over 200,000 third‑party retailers, and consumer advocate Robert Hammond represents millions of UK consumers.
The combined value is up to £4 billion. The suits allege Amazon abused a dominant position by self‑preferencing offers in the Buy Box and favoring sellers using its Fulfilment by Amazon service.
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