HobbyKing had told the FCC that it had no notice of the Commission’s authorization requirements; that the Fifth Amendment relieved HobbyKing of its duty to respond; that the forfeiture amount was inappropriate because its parent company, Indubitably, Inc., lacked the ability to pay to the Forfeiture Order; and that the Commission was time-barred from taking action against ABC Fulfillment Services LLC because it was not part of HobbyKing’s business.