Amazon.com failed to meet British regulators' deadlines to hand over emails between senior bosses, including chief executive officer Jeff Bezos, during a probe of the retail giant's investment into Deliveroo.
Mr Bezos is the world's richest person.
The UK's competition watchdog fined Amazon £55,000 (€61,274) for being late in providing internal documents crucial to the investigation. A total of 189 documents were provided between a few days and more than two months after deadlines, and only after repeated follow-ups by the regulator, the Competition and Markets Authority (CMA) said in a report published yesterday.
Amazon was required to produce all emails sent or received in the last two years by an unnamed senior executive and key custodian of the company, which included any of a specified list of terms provided by the watchdog.
The missing communications included an email chain between Mr Bezos and other senior executives that ended April 2, 2019. The report didn't reveal what was discussed in the messages.
Amazon handed over the email chain nearly two months after the deadline set by the regulator.
"We are committed to supporting regulatory bodies in their work," an Amazon spokesperson said by email. "We cooperated fully with the CMA's inquiry and worked hard to provide large volumes of information in a timely manner. All requested documents were provided to the CMA."
Amazon's minority investment in the food delivery service was approved by the CMA last month after a roller-coaster investigation. The CMA concluded that the 16pc stake won't substantially lessen competition - but warned of a potential further probe if Amazon went on to acquire a greater level of control over Deliveroo. Amazon will not appeal the fine.