Several of the high-profile accounts have been suspended by Twitter. It told the BBC that Amazon Ambassadors are subject to Twitter’s rules on spam and platform manipulation.
Accounts which impersonate or falsely claim to be affiliated with a company, can be temporarily suspended or removed.
Any parody account should have a disclaimer in its Twitter bio, the company added.
It is unclear whether the accounts are real employees, bots or trolls pretending to be Amazon Ambassadors.