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(1). An appeal to the Supervisor must be made “within 90 calendar days” of the date of the response of the records access officer, see 950 32.08(1)(c), or if there was no response, “within 90 calendar days of the request,” 950 32.08(1)(d).