No appeal is possible until custodian denies the request or fails to comply “with any provision of 950.32.00” – presumably meaning, in the typical case, that the 10-day response period has lapsed without a response. G.L. c. 66, § 10(b) (“fails to comply”); 950 32.08(2). An appeal to the Supervisor must be made “within 90 days” of the date of the response of the records access officer. See 950 32.08(1)(d); Guide to Mass. Pub. Rec. Law at 73 (Sec’y of State, rev. Mar. 2020), https://www.sec.state.ma.us/pre/prepdf/guide.pdf.