the small provider makes such determination), after which no further action by the provider is required and receipt of the notification shall not be considered in determining whether the provider has actual knowledge of any information described in the notification. (IV) Effect of complainant failure to respond If the complainant does not respond to the provider's attempt to contact the complainant under this clause within 14 days of such attempt, no further action by the provider is required and receipt of the notification shall not be considered in determining whether the provider has actual knowledge of any information described in the notification. (ii) Treatment of incomplete notification where complainant cannot be contacted If a notification that is submitted to a provider under this subsection does not contain sufficient information under subparagraph (A)(i) to identify or locate the visual depiction that is the subject of the notification and does not contain the complainant contact information described in subparagraph (A)(ii) (or if the provider is unable to contact the complainant using such information), no further action by the provider is required and receipt of the notification shall not be considered in determining whether the provider has actual knowledge of any information described in the notification. (iii) Treatment of notification not submitted to designated reporting system If a provider has a designated reporting system, and a complainant submits a notification under this subsection to the provider without using such system, the provider shall not be considered to have received the notification. (E) Option to contact complainant regarding the proscribed visual depiction involving a minor (i) Contact with complainant If the provider believes that the proscribed visual depiction involving a minor referenced in the notification does not meet the definition of such term as provided in subsection (r)(10), the provider may, not later than 48 hours after receiving the notification (or, in the