Within 10 days of notification or mailing of the informal complaint report, and not thereafter except for good cause, an appeal from the report of the Consumer Service Representative may be filed by means of a written intention to appeal.
52 Pa. Code § 64.162
This section cited in 52 Pa. Code § 63.15 (relating to complaint procedures); and 52 Pa. Code § 64.153 (relating to Commision informal complaint procedures).