; (iii) may, if the provider reasonably believes that any facts or circumstances described in paragraph (2)(A) exist, take the actions described in subparagraph (B); and (iv) shall, if a submission to the provider by a user, subscriber, or customer of the provider alleges facts or circumstances described in paragraph (2) and the provider upon review has a reasonable belief that the alleged facts or circumstances exist, take the actions described in subparagraph (B). (B) Actions described The actions described in this subparagraph are— (i) providing to the Drug Enforcement Administration the mailing address, telephone number, facsimile number, and electronic mailing address of, and individual point of contact for, such provider; and (ii) making a report of such facts or circumstances to the Drug Enforcement Administration. (2) Facts and circumstances (A) Violations The facts or circumstances described in this subparagraph are any facts or circumstances that indicate a violation has occurred involving— (i) the unlawful sale or distribution of— (I) fentanyl; or (II) methamphetamine