So I bought another new copy of Battlefield 3 so I have an extra online code. Dunno if it works with the recent removal of online codes but here you go! :
Amazon.com: Battlefield 3 - Playstation 3 : Everything Else
Free: Battlefield 3 - "Premium Edition" Full Content Voucher - DLC (Sony Playstation 3, PS3, PSN) - Video Game Prepaid Cards & Codes - Listia.com Auctions for Free Stuff
Here you go, reddit: SSx and Battlefield 3 online passes for PS3 : r/gaming