Here are three posts from last year on ways folks got around the "new customer" angle with Netflix. I cannot say if they will work this year, but this was what was reported as working last year. Good luck!
http://www.flyertalk.com/forum/14574502-post128.html
http://www.flyertalk.com/forum/14762128-post1653.html
http://www.flyertalk.com/forum/14951394-post3842.html
(The links all look the same, but each goes to a different post.)