If there is a conflict with the date and time, you must mail or fax a written request for a continuance of the hearing within 10 days of receipt of the hearing notice. Requests for continuances made after this 10 day period but more than 7 days before the hearing date will only be granted if good cause is shown. Requests made within 7 days of the hearing date will only be made in the case of an emergency. Failure of the appellant or his designated representative to attend a hearing or to submit the appellant’s position in writing or by electronic transmission by a date specified by the board or by the hearing date, if no date is specified by the board, shall constitute withdrawal of the appeal.