Tesco slammed for 'failure to act' on bullying allegations

GMB Union has criticised Tesco for failing to deal with a collective grievance raised by 16 workers at a west London store, months after it was formally submitted.

The grievance – which was submitted in April – details allegations of bullying by a manager at the company’s Yeading store over the course of two years.

Despite the seriousness of the complaint, Tesco has yet to fully investigate or issue an outcome.

GMB learned recently after weeks of silence that the staff member appointed to hear the grievance is no longer with the business.

The union has requested a written outcome within five working days, citing both ACAS guidance — which requires that grievances be handled ‘without unreasonable delay’ — and Tesco’s own grievance policy, which commits to concluding investigations 'within a reasonable timeframe'.

Reports from GMB members suggest that the manager named in the complaint has resumed their inappropriate behaviour and targeted individuals they believe are involved in the grievance, underscoring the need for a swift resolution.

Trevlyn McLeod, GMB Regional Organiser, said:

“It took enormous courage for our members to raise a grievance and Tesco’s silence in return has been shameful.

“This isn’t just a delay — it’s a failure of basic process.

“Tesco’s failure to act on these bullying allegations risks undermining staff confidence that their concerns will be heard and treated seriously.”