with complainant If the provider believes that the child sexual abuse material 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 case of a small provider, not later than 2 business days after such notification is received by the small provider), contact the complainant via electronic mail address to so indicate. (ii) Failure to respond If the complainant does not respond to the provider within 14 days after receiving the notification, 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) Complainant response If the complainant responds to the provider within 14 days after receiving the notification, the provider shall then proceed as set forth in paragraph (1), except that the applicable timeframes described in such paragraph shall commence on the day the provider receives the complainant’s response. (F) Service of notification where provider has no designated reporting system