Case record · Core: antitrust / funding · United Kingdom (GB)

UK CAT certifies ACSO's opt-out collective claim against Amazon on conditions, with reasons to follow

On 13 October 2026 the UK Competition Appeal Tribunal ruled that ACSO can be authorised as class representative in its opt-out collective proceedings against Amazon group companies, subject to conditions; full reasons are to follow in a separate judgment.

Proceedings

United Kingdom — Authority proceeding
Jurisdiction
United Kingdom
Case number
unknown
Posture
Pending (as of 14 October 2026)
Finality
Unknown
ID
CASE-GB-2-P1

Timeline

  1. (decision date · day precision)

    Certification: UK CAT certifies ACSO's opt-out collective claim against Amazon on conditions, with reasons to follow

    Actor: Competition Appeal Tribunal · Posture after: Pending · latest recorded event

    GBP 150 (other amount)

    UK CAT certifies ACSO's opt-out collective claim against Amazon on conditions, with reasons to follow

    • 1749/7/7/25 Association of Consumer Support Organisations Ltd v (1) Amazon.com, Inc., (2) Amazon Europe Core S.À.R.L., (3) Amazon EU S.À.R.L, (4) Amazon U.K. Services Ltd., and (5) Amazon Payments U.K. Limited
      United Kingdom · Official / primary · Judgment · published 13 October 2026 · en · checked 14 October 2026Cited at: A. Introduction, paragraph 1; A. Introduction, paragraph 1; A. Introduction, paragraph 2; A. Introduction, paragraph 2; A. Introduction, paragraph 3; A. Introduction, paragraph 3; A. Introduction, paragraph 3; B. ACSO's Application for a Collective Proceedings Order, paragraph 4; B. ACSO's Application for a Collective Proceedings Order, paragraph 4(a)-(b); B. ACSO's Application for a Collective Proceedings Order, paragraph 4(c)(i)-(ii); B. ACSO's Application for a Collective Proceedings Order, paragraph 5(a); B. ACSO's Application for a Collective Proceedings Order, paragraph 5(b); B. ACSO's Application for a Collective Proceedings Order, paragraph 5(b)(i)-(ii); B. ACSO's Application for a Collective Proceedings Order, paragraph 6; B. ACSO's Application for a Collective Proceedings Order, paragraph 7; B. ACSO's Application for a Collective Proceedings Order, paragraph 8; Cover page and B., paragraph 9