From another forum 
this showed up in like three places, all of which I wasn't paying attention to, resulting in me missing itQuote
Free keys! https://bf3beta.battlefield.com/dob/index.php?id=1
Login and when asks for key, change in your adress field of browser "Key" to"legal"
Then press Enter and key is yours!
Login and when asks for key, change in your adress field of browser "Key" to"legal"
Then press Enter and key is yours!
Quote
How much are you offering?
hell if I know