F.W. Woolworth Co.'s Kinney Shoes unit is contacting up to 15 agencies for its account now at Arnold Fortuna Lawner & Cabot, Boston. Billings are estimated at $5 million to $10 million in the review, which may presage a review for Woolworth's $20 million-plus Foot Locker account now at Bates USA. Sources say that Foot Locker marketing executives are helping Kinney executives in their review and suspect that a Foot Locker review will follow. Neither Arnold, Bates, Kinney nor Footlocker executives could be reached.