Haven't time to respond to everything, but remember that there is no need for legal action unless there is a legal complaint filed--no reason to co-operate, no reason to discuss or respond--don't help them on a fishing expedition--they have no authority to demand any accounting from you of anything--remember that the action comes from the publisher or an authorized representative--I am not litigious, but I believe don't hesitate to excercise my legal rights to the fullest extent when I feel that I have to--
I personally advise everyone to excercise protect the rights that they have been granted by our constitution, even when others do not want you to--