that there is no phone number available for the seller and that consumer inquiries should be submitted to the seller’s email address. (B) Limitation on exception If an online marketplace becomes aware that a high-volume third-party seller has made a false representation to the online marketplace in order to justify the provision of a partial disclosure under subparagraph (A) or that a high-volume third-party seller who has requested and received a provision for a partial disclosure under subparagraph (A) has not provided responsive answers within a reasonable timeframe to consumer inquiries submitted to the seller by phone or email address, the online marketplace shall withdraw its provision for partial disclosure and require the full disclosure of the high-volume third-party seller’s identity information required under paragraph (1)(A) upon 3 business days’ notice to the high-volume third-party seller. (3) Reporting mechanism An online marketplace shall disclose to consumers, in a conspicuous manner on the product listing of any high-volume third-party seller, a reporting mechanism that allows for electronic and telephonic reporting of suspicious marketplace activity to the online marketplace and a message encouraging individuals seeking goods for purchase to report suspicious activity to the online marketplace. (c) Fulfillment or shipment by different party than seller In addition to the requirements of subsection (b), an online marketplace that warehouses, distributes, or otherwise fulfills a consumer product order shall disclose to the consumer the identification of any high-volume third-party seller supplying the consumer product if different than the seller listed on the product listing page. (d) Enforcement (1) Unfair and deceptive acts or practices A violation of subsection (a), (b), or (c) shall be treated as a violation of a rule defining an unfair or deceptive act or practice prescribed under section 18(a)(1)(B) of the Federal Trade Commission Act ( 15 U.S.C. 57a(a)(1)(B) ). (2) Powers of the