Accounts accused of impersonating the Shein brand have been suspended.Getty Images The parent company of Shein has accused rival fast fashion company Temu of online impersonation. Shein is also suing Twitter to reveal whether Temu was behind fake accounts that used its trademark. Twitter has refused to comply with a subpoena on the grounds that it violates privacy law. The parent company for Shein is aiming at Twitter in its pursuit of knocking down copycat accounts online, suing the social media giant to force it to reveal who is behind anonymous accounts impersonating the fast fashion company.In a court filing reviewed by Insider, Roadget Business Pte.