Under 14 CFR § 107.7(a)(3), a remote pilot in command must make available to the FAA, upon request —

Why: 14 CFR § 107.7(a)(3) requires a remote pilot in command, owner, or person manipulating the flight controls to "make available, upon request, to the Administrator any document, record, or report required to be kept under the regulations of this chapter."

• Confuses § 107.7(a)(3)'s broad records-production duty with § 107.7(a)(1)-(2)'s separate requirement to carry and present the certificate itself, which is a different, narrower obligation.
• Invents a specific document (a sales receipt) that § 107.7 does not name; the regulation refers generally to required documents, records, or reports, not to purchase documentation.