A legal claim has been filed against Amazon that could see the company pay as much as £900m in compensation to shoppers in the United Kingdom.
The proposed claim alleges the company breached competition law and caused customers to pay higher prices.
The legal claim is being championed by Consumer-Rights Champion Julie Hunter, who says products sold on Amazon.Co.Uk and the Amazon App obscured better-value deals.
The collective action is due to be filed before the end of the month.