Supervision lessons following a client complaint: Reflections on ethical practice

Abstract Client complaints are a relatively common yet profoundly destabilising feature of psychotherapeutic practice, and they are rarely examined in depth from the perspective of supervision. This article offers a reflective account of the supervision learning arising from a complaint made against the author to the UK Council for Psychotherapy (UKCP) following long‐term work with a client who had an extensive history of trauma. Drawing on a psychodynamic and relational framework, the paper explores how supervision was used throughout the therapy, what it offered and what may have been missed. Particular attention is paid to the impact of group dynamics, supervisory stance, boundary flexibility and assumptions about safety in supervised work. The article also reflects on the experience of navigating a regulatory complaints process that operates through binary judgements while attempting to hold the inherent ambiguity and uncertainty of therapeutic work. The author argues that supervision following a complaint requires careful re‐contracting, increased containment and a both/and stance that resists collapse into either self‐blame or defensive absolution.