North American Directory Assistance alleges that we owe them charges for online listing of our company. The listing was never authorized. All they have is a recorded conversation with our Administrative Asst. confirming our address to send the invoice. They claim that our Administrative Assistant authorized the listing. Our administrative assistants are never authorized to enter into any contracts with anyone without permission from the Company Officers. North American Directory Assistance first invoiced us for $764.95 for one year of listing. They now want us to settle for $364.95.